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1031211013001 = 1317113255116187
BaseRepresentation
bin11110000000110001111…
…01110101001110001001
310122120201212110011101112
433000120331311032021
5113343410004404001
62105422022500105
7134334240662021
oct17003075651611
93576655404345
101031211013001
11368374807a14
12147a32594635
137632050ca80
1437ca764aa81
151bc56853cbb
hexf018f75389

1031211013001 has 32 divisors (see below), whose sum is σ = 1186804700928. Its totient is φ = 887562547200.

The previous prime is 1031211012973. The next prime is 1031211013033. The reversal of 1031211013001 is 1003101121301.

It is a happy number.

1031211013001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1031211013001 - 214 = 1031210996617 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1031211013201) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 63698030 + ... + 63714216.

It is an arithmetic number, because the mean of its divisors is an integer number (37087646904).

Almost surely, 21031211013001 is an apocalyptic number.

It is an amenable number.

1031211013001 is a deficient number, since it is larger than the sum of its proper divisors (155593687927).

1031211013001 is a wasteful number, since it uses less digits than its factorization.

1031211013001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18881.

The product of its (nonzero) digits is 18, while the sum is 14.

Adding to 1031211013001 its reverse (1003101121301), we get a palindrome (2034312134302).

The spelling of 1031211013001 in words is "one trillion, thirty-one billion, two hundred eleven million, thirteen thousand, one".

Divisors: 1 13 17 113 221 1469 1921 2551 16187 24973 33163 43367 210431 275179 288263 563771 1829131 3577327 3747419 4900471 23778703 31095227 41293037 63706123 404237951 536809481 701981629 4666113181 9125761177 60659471353 79323924077 1031211013001