1312055402 has 8 divisors (see below), whose sum is σ = 2249237856. Its totient is φ = 562309452.

The previous prime is 1312055399. The next prime is 1312055417. The reversal of 1312055402 is 2045502131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46859108 + ... + 46859135.

It is an arithmetic number, because the mean of its divisors is an integer number (281154732).

Almost surely, 2^1312055402 is an apocalyptic number.

1312055402 is a deficient number, since it is larger than the sum of its proper divisors (937182454).

1312055402 is an equidigital number, since it uses as much as digits as its factorization.

1312055402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93718252.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 1312055402 is about 36222.3053104023. The cubic root of 1312055402 is about 1094.7561439974.

Adding to 1312055402 its reverse (2045502131), we get a palindrome (3357557533).

The spelling of 1312055402 in words is "one billion, three hundred twelve million, fifty-five thousand, four hundred two".