312132030 has 32 divisors (see below), whose sum is σ = 856134144. Its totient is φ = 71344416.

The previous prime is 312132001. The next prime is 312132043. The reversal of 312132030 is 30231213.

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

It is a Curzon number.

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, 742962 + ... + 743381.

It is an arithmetic number, because the mean of its divisors is an integer number (26754192).

Almost surely, 2^312132030 is an apocalyptic number.

312132030 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

312132030 is an abundant number, since it is smaller than the sum of its proper divisors (544002114).

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

312132030 is a wasteful number, since it uses less digits than its factorization.

312132030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1486360.

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

The square root of 312132030 is about 17667.2587007719. The cubic root of 312132030 is about 678.3379464029.

Adding to 312132030 its reverse (30231213), we get a palindrome (342363243).

The spelling of 312132030 in words is "three hundred twelve million, one hundred thirty-two thousand, thirty".