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131022011100401 = 17215118191165049
BaseRepresentation
bin11101110010100111110000…
…011011011110110011110001
3122011220120201020012110121122
4131302213300123132303301
5114133131034320203101
61142354403030432025
736412012401551051
oct3562476033366361
9564816636173548
10131022011100401
1138825139590693
1212840b3a502615
135815426a8b395
14244d6dba35561
1510232b33d251b
hex7729f06decf1

131022011100401 has 24 divisors (see below), whose sum is σ = 140112841094400. Its totient is φ = 122490703296000.

The previous prime is 131022011100319. The next prime is 131022011100413. The reversal of 131022011100401 is 104001110220131.

It is not a de Polignac number, because 131022011100401 - 234 = 131004831231217 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 131022011100401.

It is not an unprimeable number, because it can be changed into a prime (131022011100451) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 793754525 + ... + 793919573.

It is an arithmetic number, because the mean of its divisors is an integer number (5838035045600).

Almost surely, 2131022011100401 is an apocalyptic number.

It is an amenable number.

131022011100401 is a deficient number, since it is larger than the sum of its proper divisors (9090829993999).

131022011100401 is a wasteful number, since it uses less digits than its factorization.

131022011100401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183425 (or 183408 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 131022011100401 its reverse (104001110220131), we get a palindrome (235023121320532).

The spelling of 131022011100401 in words is "one hundred thirty-one trillion, twenty-two billion, eleven million, one hundred thousand, four hundred one".

Divisors: 1 17 151 289 2567 18191 43639 165049 309247 2746841 2805833 5257199 24922399 46696297 47699161 423680783 793837049 3002406359 7202573311 51040908103 453363360209 867695437751 7707177123553 131022011100401