1213301031 has 16 divisors (see below), whose sum is σ = 1703654400. Its totient is φ = 765946368.

The previous prime is 1213301017. The next prime is 1213301051. The reversal of 1213301031 is 1301033121.

It is not a de Polignac number, because 1213301031 - 2⁹ = 1213300519 is a prime.

It is a super-2 number, since 2×1213301031² = 2944198783651325922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1213301031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1213301051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 188295 + ... + 194631.

It is an arithmetic number, because the mean of its divisors is an integer number (106478400).

Almost surely, 2^1213301031 is an apocalyptic number.

1213301031 is a deficient number, since it is larger than the sum of its proper divisors (490353369).

1213301031 is a wasteful number, since it uses less digits than its factorization.

1213301031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9718.

The product of its (nonzero) digits is 54, while the sum is 15.

The square root of 1213301031 is about 34832.4709287182. The cubic root of 1213301031 is about 1066.5703888471.

Adding to 1213301031 its reverse (1301033121), we get a palindrome (2514334152).

The spelling of 1213301031 in words is "one billion, two hundred thirteen million, three hundred one thousand, thirty-one".