123233001311 has 16 divisors (see below), whose sum is σ = 143743549440. Its totient is φ = 103469970240.

The previous prime is 123233001277. The next prime is 123233001323. The reversal of 123233001311 is 113100332321.

It is not a de Polignac number, because 123233001311 - 2²² = 123228807007 is a prime.

It is a super-2 number, since 2×123233001311² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123233001371) 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, 807110 + ... + 947571.

It is an arithmetic number, because the mean of its divisors is an integer number (8983971840).

Almost surely, 2^123233001311 is an apocalyptic number.

123233001311 is a deficient number, since it is larger than the sum of its proper divisors (20510548129).

123233001311 is a wasteful number, since it uses less digits than its factorization.

123233001311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1754894.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 123233001311 its reverse (113100332321), we get a palindrome (236333333632).

The spelling of 123233001311 in words is "one hundred twenty-three billion, two hundred thirty-three million, one thousand, three hundred eleven".