20326070431 has 2 divisors, whose sum is σ = 20326070432. Its totient is φ = 20326070430.

The previous prime is 20326070419. The next prime is 20326070437. The reversal of 20326070431 is 13407062302.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20326070431 - 2¹⁵ = 20326037663 is a prime.

It is a super-2 number, since 2×20326070431² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20326070431.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20326070437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10163035215 + 10163035216.

It is an arithmetic number, because the mean of its divisors is an integer number (10163035216).

Almost surely, 2^20326070431 is an apocalyptic number.

20326070431 is a deficient number, since it is larger than the sum of its proper divisors (1).

20326070431 is an equidigital number, since it uses as much as digits as its factorization.

20326070431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6048, while the sum is 28.

The spelling of 20326070431 in words is "twenty billion, three hundred twenty-six million, seventy thousand, four hundred thirty-one".