1002122431 has 2 divisors, whose sum is σ = 1002122432. Its totient is φ = 1002122430.

The previous prime is 1002122389. The next prime is 1002122447. The reversal of 1002122431 is 1342212001.

It is an a-pointer prime, because the next prime (1002122447) can be obtained adding 1002122431 to its sum of digits (16).

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1002122431 is a prime.

It is a super-2 number, since 2×1002122431² = 2008498733426699522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1002123431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 501061215 + 501061216.

It is an arithmetic number, because the mean of its divisors is an integer number (501061216).

Almost surely, 2^1002122431 is an apocalyptic number.

1002122431 is a deficient number, since it is larger than the sum of its proper divisors (1).

1002122431 is an equidigital number, since it uses as much as digits as its factorization.

1002122431 is an odious number, because the sum of its binary digits is odd.

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

The square root of 1002122431 is about 31656.3173947950. The cubic root of 1002122431 is about 1000.7069770656.

Adding to 1002122431 its reverse (1342212001), we get a palindrome (2344334432).

The spelling of 1002122431 in words is "one billion, two million, one hundred twenty-two thousand, four hundred thirty-one".