312132143004420 has 96 divisors (see below), whose sum is σ = 908161189125120. Its totient is φ = 80004675985920.

The previous prime is 312132143004323. The next prime is 312132143004421. The reversal of 312132143004420 is 24400341231213.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (312132143004421) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 401823391 + ... + 402599430.

It is an arithmetic number, because the mean of its divisors is an integer number (9460012386720).

Almost surely, 2^{312132143004420} is an apocalyptic number.

312132143004420 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

312132143004420 is an abundant number, since it is smaller than the sum of its proper divisors (596029046120700).

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

312132143004420 is a wasteful number, since it uses less digits than its factorization.

312132143004420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 804423085 (or 804423083 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 30.

Adding to 312132143004420 its reverse (24400341231213), we get a palindrome (336532484235633).

The spelling of 312132143004420 in words is "three hundred twelve trillion, one hundred thirty-two billion, one hundred forty-three million, four thousand, four hundred twenty".