1021302131 has 2 divisors, whose sum is σ = 1021302132. Its totient is φ = 1021302130.

The previous prime is 1021302109. The next prime is 1021302133. The reversal of 1021302131 is 1312031201.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1021302131 - 2²² = 1017107827 is a prime.

It is a super-2 number, since 2×1021302131² = 2086116085570282322, which contains 22 as substring.

Together with 1021302133, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1021302133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510651065 + 510651066.

It is an arithmetic number, because the mean of its divisors is an integer number (510651066).

Almost surely, 2^1021302131 is an apocalyptic number.

1021302131 is a deficient number, since it is larger than the sum of its proper divisors (1).

1021302131 is an equidigital number, since it uses as much as digits as its factorization.

1021302131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 1021302131 is about 31957.8179949758. The cubic root of 1021302131 is about 1007.0508785998.

Adding to 1021302131 its reverse (1312031201), we get a palindrome (2333333332).

The spelling of 1021302131 in words is "one billion, twenty-one million, three hundred two thousand, one hundred thirty-one".