312130100 has 36 divisors (see below), whose sum is σ = 712975200. Its totient is φ = 118280160.

The previous prime is 312130087. The next prime is 312130109. The reversal of 312130100 is 1031213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312130109) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 80240 + ... + 84039.

Almost surely, 2^312130100 is an apocalyptic number.

It is an amenable number.

312130100 is an abundant number, since it is smaller than the sum of its proper divisors (400845100).

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

312130100 is a wasteful number, since it uses less digits than its factorization.

312130100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164312 (or 164305 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 11.

The square root of 312130100 is about 17667.2040798764. The cubic root of 312130100 is about 678.3365482820.

Adding to 312130100 its reverse (1031213), we get a palindrome (313161313).

The spelling of 312130100 in words is "three hundred twelve million, one hundred thirty thousand, one hundred".