12315212930 has 32 divisors (see below), whose sum is σ = 23611948416. Its totient is φ = 4608542464.

The previous prime is 12315212893. The next prime is 12315212933. The reversal of 12315212930 is 3921251321.

It is a happy number.

It is a super-2 number, since 2×12315212930² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12315212893 and 12315212902.

It is not an unprimeable number, because it can be changed into a prime (12315212933) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 188504 + ... + 245283.

It is an arithmetic number, because the mean of its divisors is an integer number (737873388).

Almost surely, 2^12315212930 is an apocalyptic number.

12315212930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12315212930 is a deficient number, since it is larger than the sum of its proper divisors (11296735486).

12315212930 is a wasteful number, since it uses less digits than its factorization.

12315212930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 433978.

The product of its (nonzero) digits is 3240, while the sum is 29.

The spelling of 12315212930 in words is "twelve billion, three hundred fifteen million, two hundred twelve thousand, nine hundred thirty".