2231011123123 has 16 divisors (see below), whose sum is σ = 2376305040384. Its totient is φ = 2087297766400.

The previous prime is 2231011123069. The next prime is 2231011123139. The reversal of 2231011123123 is 3213211101322.

It is a cyclic number.

It is not a de Polignac number, because 2231011123123 - 2²⁵ = 2230977568691 is a prime.

It is a super-3 number, since 3×2231011123123³ (a number of 38 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2231011123094 and 2231011123103.

It is not an unprimeable number, because it can be changed into a prime (2231011123153) 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, 3565311 + ... + 4144087.

It is an arithmetic number, because the mean of its divisors is an integer number (148519065024).

Almost surely, 2^{2231011123123} is an apocalyptic number.

2231011123123 is a deficient number, since it is larger than the sum of its proper divisors (145293917261).

2231011123123 is a wasteful number, since it uses less digits than its factorization.

2231011123123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 580142.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 2231011123123 its reverse (3213211101322), we get a palindrome (5444222224445).

The spelling of 2231011123123 in words is "two trillion, two hundred thirty-one billion, eleven million, one hundred twenty-three thousand, one hundred twenty-three".