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1231122004201 = 25737912639467
BaseRepresentation
bin10001111010100100100…
…101101111100011101001
311100200202000020201202201
4101322210211233203221
5130132314213113301
62341323013100201
7154642231242115
oct21724445574351
94320660221681
101231122004201
11435130304521
1217a724327661
138c12c2661cb
144382d99c745
1522057095201
hex11ea496f8e9

1231122004201 has 8 divisors (see below), whose sum is σ = 1239173442720. Its totient is φ = 1223095845888.

The previous prime is 1231122004193. The next prime is 1231122004213. The reversal of 1231122004201 is 1024002211321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1231122004201 - 23 = 1231122004193 is a prime.

It is a super-2 number, since 2×12311220042012 (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1231122004901) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6222331 + ... + 6417136.

It is an arithmetic number, because the mean of its divisors is an integer number (154896680340).

Almost surely, 21231122004201 is an apocalyptic number.

It is an amenable number.

1231122004201 is a deficient number, since it is larger than the sum of its proper divisors (8051438519).

1231122004201 is a wasteful number, since it uses less digits than its factorization.

1231122004201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12640103.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 1231122004201 its reverse (1024002211321), we get a palindrome (2255124215522).

The spelling of 1231122004201 in words is "one trillion, two hundred thirty-one billion, one hundred twenty-two million, four thousand, two hundred one".

Divisors: 1 257 379 97403 12639467 3248343019 4790357993 1231122004201