1020001312 has 24 divisors (see below), whose sum is σ = 2190685392. Its totient is φ = 463636800.

The previous prime is 1020001303. The next prime is 1020001337. The reversal of 1020001312 is 2131000201.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1448514 + ... + 1449217.

It is an arithmetic number, because the mean of its divisors is an integer number (91278558).

Almost surely, 2^1020001312 is an apocalyptic number.

It is an amenable number.

1020001312 is an abundant number, since it is smaller than the sum of its proper divisors (1170684080).

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

1020001312 is a wasteful number, since it uses less digits than its factorization.

1020001312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2897752 (or 2897744 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 1020001312 is about 31937.4593854928. The cubic root of 1020001312 is about 1006.6231411576.

Adding to 1020001312 its reverse (2131000201), we get a palindrome (3151001513).

The spelling of 1020001312 in words is "one billion, twenty million, one thousand, three hundred twelve".