23131131120430 has 16 divisors (see below), whose sum is σ = 44085214606320. Its totient is φ = 8708190539392.

The previous prime is 23131131120373. The next prime is 23131131120439. The reversal of 23131131120430 is 3402113113132.

It is a junction number, because it is equal to n+sod(n) for n = 23131131120395 and 23131131120404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23131131120439) 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, 68032738420 + ... + 68032738759.

It is an arithmetic number, because the mean of its divisors is an integer number (2755325912895).

Almost surely, 2^{23131131120430} is an apocalyptic number.

23131131120430 is a deficient number, since it is larger than the sum of its proper divisors (20954083485890).

23131131120430 is a wasteful number, since it uses less digits than its factorization.

23131131120430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136065477203.

The product of its (nonzero) digits is 1296, while the sum is 25.

Adding to 23131131120430 its reverse (3402113113132), we get a palindrome (26533244233562).

The spelling of 23131131120430 in words is "twenty-three trillion, one hundred thirty-one billion, one hundred thirty-one million, one hundred twenty thousand, four hundred thirty".