231310020030 has 16 divisors (see below), whose sum is σ = 555144048144. Its totient is φ = 61682672000.

The previous prime is 231310020017. The next prime is 231310020041. The reversal of 231310020030 is 30020013132.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a junction number, because it is equal to n+sod(n) for n = 231310019991 and 231310020009.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3855166971 + ... + 3855167030.

It is an arithmetic number, because the mean of its divisors is an integer number (34696503009).

Almost surely, 2^231310020030 is an apocalyptic number.

231310020030 is an abundant number, since it is smaller than the sum of its proper divisors (323834028114).

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

231310020030 is a wasteful number, since it uses less digits than its factorization.

231310020030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7710334011.

The product of its (nonzero) digits is 108, while the sum is 15.

Adding to 231310020030 its reverse (30020013132), we get a palindrome (261330033162).

The spelling of 231310020030 in words is "two hundred thirty-one billion, three hundred ten million, twenty thousand, thirty".