1321002412 has 24 divisors (see below), whose sum is σ = 2339290800. Its totient is φ = 652680000.

The previous prime is 1321002409. The next prime is 1321002427. The reversal of 1321002412 is 2142001231.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 111787 + ... + 123037.

It is an arithmetic number, because the mean of its divisors is an integer number (97470450).

Almost surely, 2^1321002412 is an apocalyptic number.

It is an amenable number.

1321002412 is a deficient number, since it is larger than the sum of its proper divisors (1018288388).

1321002412 is a wasteful number, since it uses less digits than its factorization.

1321002412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11601 (or 11599 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 1321002412 is about 36345.5968722485. The cubic root of 1321002412 is about 1097.2389188073.

Adding to 1321002412 its reverse (2142001231), we get a palindrome (3463003643).

The spelling of 1321002412 in words is "one billion, three hundred twenty-one million, two thousand, four hundred twelve".