231240100030 has 16 divisors (see below), whose sum is σ = 416238563664. Its totient is φ = 92494621440.

The previous prime is 231240100009. The next prime is 231240100061. The reversal of 231240100030 is 30001042132.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 231240099977 and 231240100013.

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, 726865 + ... + 995395.

It is an arithmetic number, because the mean of its divisors is an integer number (26014910229).

Almost surely, 2^231240100030 is an apocalyptic number.

231240100030 is a deficient number, since it is larger than the sum of its proper divisors (184998463634).

231240100030 is a wasteful number, since it uses less digits than its factorization.

231240100030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 354651.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 231240100030 its reverse (30001042132), we get a palindrome (261241142162).

The spelling of 231240100030 in words is "two hundred thirty-one billion, two hundred forty million, one hundred thousand, thirty".