1423202531 has 2 divisors, whose sum is σ = 1423202532. Its totient is φ = 1423202530.

The previous prime is 1423202507. The next prime is 1423202551. The reversal of 1423202531 is 1352023241.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1423202531 is a prime.

It is a super-2 number, since 2×1423202531² = 4051010888489611922, which contains 22 as substring.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 1423202497 and 1423202506.

It is not a weakly prime, because it can be changed into another prime (1423202551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 711601265 + 711601266.

It is an arithmetic number, because the mean of its divisors is an integer number (711601266).

Almost surely, 2^1423202531 is an apocalyptic number.

1423202531 is a deficient number, since it is larger than the sum of its proper divisors (1).

1423202531 is an equidigital number, since it uses as much as digits as its factorization.

1423202531 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 1423202531 is about 37725.3566053391. The cubic root of 1423202531 is about 1124.8352103649.

Adding to 1423202531 its reverse (1352023241), we get a palindrome (2775225772).

The spelling of 1423202531 in words is "one billion, four hundred twenty-three million, two hundred two thousand, five hundred thirty-one".