231302100030 has 32 divisors (see below), whose sum is σ = 555142781088. Its totient is φ = 61678588800.

The previous prime is 231302100013. The next prime is 231302100053. The reversal of 231302100030 is 30001203132.

It is a super-2 number, since 2×231302100030² (a number of 24 digits) contains 22 as substring.

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 = 231302099982 and 231302100009.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 998620 + ... + 1208240.

It is an arithmetic number, because the mean of its divisors is an integer number (17348211909).

Almost surely, 2^231302100030 is an apocalyptic number.

231302100030 is an abundant number, since it is smaller than the sum of its proper divisors (323840681058).

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

231302100030 is a wasteful number, since it uses less digits than its factorization.

231302100030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246412.

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

Adding to 231302100030 its reverse (30001203132), we get a palindrome (261303303162).

The spelling of 231302100030 in words is "two hundred thirty-one billion, three hundred two million, one hundred thousand, thirty".