20372400426031 has 2 divisors, whose sum is σ = 20372400426032. Its totient is φ = 20372400426030.

The previous prime is 20372400426023. The next prime is 20372400426061. The reversal of 20372400426031 is 13062400427302.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20372400426031 - 2³ = 20372400426023 is a prime.

It is a super-2 number, since 2×20372400426031² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20372400426061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10186200213015 + 10186200213016.

It is an arithmetic number, because the mean of its divisors is an integer number (10186200213016).

Almost surely, 2^{20372400426031} is an apocalyptic number.

20372400426031 is a deficient number, since it is larger than the sum of its proper divisors (1).

20372400426031 is an equidigital number, since it uses as much as digits as its factorization.

20372400426031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48384, while the sum is 34.

The spelling of 20372400426031 in words is "twenty trillion, three hundred seventy-two billion, four hundred million, four hundred twenty-six thousand, thirty-one".