120011232131231 has 16 divisors (see below), whose sum is σ = 137922837661440. Its totient is φ = 102291420143040.

The previous prime is 120011232131173. The next prime is 120011232131243. The reversal of 120011232131231 is 132131232110021.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 120011232131231 - 2²⁶ = 120011165022367 is a prime.

It is a super-2 number, since 2×120011232131231² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120011232131197 and 120011232131206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120011232131831) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 314413760 + ... + 314795226.

It is an arithmetic number, because the mean of its divisors is an integer number (8620177353840).

Almost surely, 2^{120011232131231} is an apocalyptic number.

120011232131231 is a deficient number, since it is larger than the sum of its proper divisors (17911605530209).

120011232131231 is a wasteful number, since it uses less digits than its factorization.

120011232131231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 632734.

The product of its (nonzero) digits is 432, while the sum is 23.

Adding to 120011232131231 its reverse (132131232110021), we get a palindrome (252142464241252).

The spelling of 120011232131231 in words is "one hundred twenty trillion, eleven billion, two hundred thirty-two million, one hundred thirty-one thousand, two hundred thirty-one".