1312211432 has 32 divisors (see below), whose sum is σ = 2813123520. Its totient is φ = 562128000.

The previous prime is 1312211429. The next prime is 1312211477. The reversal of 1312211432 is 2341122131.

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, 183932 + ... + 190932.

It is an arithmetic number, because the mean of its divisors is an integer number (87910110).

Almost surely, 2^1312211432 is an apocalyptic number.

It is an amenable number.

1312211432 is an abundant number, since it is smaller than the sum of its proper divisors (1500912088).

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

1312211432 is a wasteful number, since it uses less digits than its factorization.

1312211432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10361 (or 10357 counting only the distinct ones).

The product of its digits is 288, while the sum is 20.

The square root of 1312211432 is about 36224.4590297771. The cubic root of 1312211432 is about 1094.7995385142.

Adding to 1312211432 its reverse (2341122131), we get a palindrome (3653333563).

The spelling of 1312211432 in words is "one billion, three hundred twelve million, two hundred eleven thousand, four hundred thirty-two".