12312211030 has 32 divisors (see below), whose sum is σ = 25945738560. Its totient is φ = 4118369280.

The previous prime is 12312210997. The next prime is 12312211073. The reversal of 12312211030 is 3011221321.

It is a junction number, because it is equal to n+sod(n) for n = 12312210995 and 12312211013.

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, 2142115 + ... + 2147854.

It is an arithmetic number, because the mean of its divisors is an integer number (810804330).

Almost surely, 2^12312211030 is an apocalyptic number.

12312211030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12312211030 is an abundant number, since it is smaller than the sum of its proper divisors (13633527530).

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

12312211030 is a wasteful number, since it uses less digits than its factorization.

12312211030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4290024.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 12312211030 its reverse (3011221321), we get a palindrome (15323432351).

The spelling of 12312211030 in words is "twelve billion, three hundred twelve million, two hundred eleven thousand, thirty".