1020122431 has 2 divisors, whose sum is σ = 1020122432. Its totient is φ = 1020122430.

The previous prime is 1020122419. The next prime is 1020122447. The reversal of 1020122431 is 1342210201.

It is an a-pointer prime, because the next prime (1020122447) can be obtained adding 1020122431 to its sum of digits (16).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1020122431 - 2⁵ = 1020122399 is a prime.

It is a super-2 number, since 2×1020122431² = 2081299548458699522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1020122461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510061215 + 510061216.

It is an arithmetic number, because the mean of its divisors is an integer number (510061216).

Almost surely, 2^1020122431 is an apocalyptic number.

1020122431 is a deficient number, since it is larger than the sum of its proper divisors (1).

1020122431 is an equidigital number, since it uses as much as digits as its factorization.

1020122431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 1020122431 is about 31939.3555194841. The cubic root of 1020122431 is about 1006.6629830550.

Adding to 1020122431 its reverse (1342210201), we get a palindrome (2362332632).

The spelling of 1020122431 in words is "one billion, twenty million, one hundred twenty-two thousand, four hundred thirty-one".