312125020 has 24 divisors (see below), whose sum is σ = 661830624. Its totient is φ = 123637056.

The previous prime is 312124991. The next prime is 312125029. The reversal of 312125020 is 20521213.

It is a super-2 number, since 2×312125020² = 194844056220000800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 312124985 and 312125003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312125029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73699 + ... + 77818.

It is an arithmetic number, because the mean of its divisors is an integer number (27576276).

Almost surely, 2^312125020 is an apocalyptic number.

It is an amenable number.

312125020 is an abundant number, since it is smaller than the sum of its proper divisors (349705604).

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

312125020 is a wasteful number, since it uses less digits than its factorization.

312125020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151629 (or 151627 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 312125020 is about 17667.0603100799. The cubic root of 312125020 is about 678.3328682264.

Adding to 312125020 its reverse (20521213), we get a palindrome (332646233).

The spelling of 312125020 in words is "three hundred twelve million, one hundred twenty-five thousand, twenty".