1231330200023 has 64 divisors (see below), whose sum is σ = 1635204243456. Its totient is φ = 899258112000.

The previous prime is 1231330200013. The next prime is 1231330200047. The reversal of 1231330200023 is 3200020331321.

It is a cyclic number.

It is not a de Polignac number, because 1231330200023 - 2²² = 1231326005719 is a prime.

It is a super-2 number, since 2×1231330200023² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1231330199968 and 1231330200004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1231330200013) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 13361861 + ... + 13453697.

It is an arithmetic number, because the mean of its divisors is an integer number (25550066304).

Almost surely, 2^{1231330200023} is an apocalyptic number.

1231330200023 is a deficient number, since it is larger than the sum of its proper divisors (403874043433).

1231330200023 is a wasteful number, since it uses less digits than its factorization.

1231330200023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92064.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 1231330200023 its reverse (3200020331321), we get a palindrome (4431350531344).

The spelling of 1231330200023 in words is "one trillion, two hundred thirty-one billion, three hundred thirty million, two hundred thousand, twenty-three".