231023231121130 has 64 divisors (see below), whose sum is σ = 490582347522048. Its totient is φ = 76652246825280.

The previous prime is 231023231121121. The next prime is 231023231121131. The reversal of 231023231121130 is 31121132320132.

It is a junction number, because it is equal to n+sod(n) for n = 231023231121095 and 231023231121104.

It is not an unprimeable number, because it can be changed into a prime (231023231121131) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 322370989 + ... + 323086831.

It is an arithmetic number, because the mean of its divisors is an integer number (7665349180032).

Almost surely, 2^{231023231121130} is an apocalyptic number.

231023231121130 is an abundant number, since it is smaller than the sum of its proper divisors (259559116400918).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

231023231121130 is a wasteful number, since it uses less digits than its factorization.

231023231121130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 864611.

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

Adding to 231023231121130 its reverse (31121132320132), we get a palindrome (262144363441262).

The spelling of 231023231121130 in words is "two hundred thirty-one trillion, twenty-three billion, two hundred thirty-one million, one hundred twenty-one thousand, one hundred thirty".