231213323030 has 16 divisors (see below), whose sum is σ = 416230167024. Its totient is φ = 92475065760.

The previous prime is 231213323017. The next prime is 231213323039. The reversal of 231213323030 is 30323312132.

It is a junction number, because it is equal to n+sod(n) for n = 231213322987 and 231213323005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231213323039) 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, 1187981 + ... + 1368840.

It is an arithmetic number, because the mean of its divisors is an integer number (26014385439).

Almost surely, 2^231213323030 is an apocalyptic number.

231213323030 is a deficient number, since it is larger than the sum of its proper divisors (185016843994).

231213323030 is a wasteful number, since it uses less digits than its factorization.

231213323030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2565871.

The product of its (nonzero) digits is 1944, while the sum is 23.

Adding to 231213323030 its reverse (30323312132), we get a palindrome (261536635162).

The spelling of 231213323030 in words is "two hundred thirty-one billion, two hundred thirteen million, three hundred twenty-three thousand, thirty".