20310031230 has 16 divisors (see below), whose sum is σ = 48744075024. Its totient is φ = 5416008320.

The previous prime is 20310031213. The next prime is 20310031243. The reversal of 20310031230 is 3213001302.

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

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, 338500491 + ... + 338500550.

It is an arithmetic number, because the mean of its divisors is an integer number (3046504689).

Almost surely, 2^20310031230 is an apocalyptic number.

20310031230 is an abundant number, since it is smaller than the sum of its proper divisors (28434043794).

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

20310031230 is a wasteful number, since it uses less digits than its factorization.

20310031230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 677001051.

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

Adding to 20310031230 its reverse (3213001302), we get a palindrome (23523032532).

The spelling of 20310031230 in words is "twenty billion, three hundred ten million, thirty-one thousand, two hundred thirty".