312242020042004 has 24 divisors (see below), whose sum is σ = 588462642313728. Its totient is φ = 144110102957280.

The previous prime is 312242020042003. The next prime is 312242020042009. The reversal of 312242020042004 is 400240020242213.

It is a super-2 number, since 2×312242020042004² (a number of 30 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312242020042003) 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, 28564952 + ... + 37953135.

It is an arithmetic number, because the mean of its divisors is an integer number (24519276763072).

Almost surely, 2^{312242020042004} is an apocalyptic number.

It is an amenable number.

312242020042004 is a deficient number, since it is larger than the sum of its proper divisors (276220622271724).

312242020042004 is a wasteful number, since it uses less digits than its factorization.

312242020042004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66608375 (or 66608373 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 26.

Adding to 312242020042004 its reverse (400240020242213), we get a palindrome (712482040284217).

The spelling of 312242020042004 in words is "three hundred twelve trillion, two hundred forty-two billion, twenty million, forty-two thousand, four".