1312021302 has 16 divisors (see below), whose sum is σ = 2625177792. Its totient is φ = 437151240.

The previous prime is 1312021273. The next prime is 1312021327. The reversal of 1312021302 is 2031202131.

It is a congruent number.

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, 31888 + ... + 60339.

It is an arithmetic number, because the mean of its divisors is an integer number (164073612).

Almost surely, 2^1312021302 is an apocalyptic number.

1312021302 is an abundant number, since it is smaller than the sum of its proper divisors (1313156490).

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

1312021302 is a wasteful number, since it uses less digits than its factorization.

1312021302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94603.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 1312021302 is about 36221.8346029022. The cubic root of 1312021302 is about 1094.7466597668.

Adding to 1312021302 its reverse (2031202131), we get a palindrome (3343223433).

The spelling of 1312021302 in words is "one billion, three hundred twelve million, twenty-one thousand, three hundred two".