19922473031 has 2 divisors, whose sum is σ = 19922473032. Its totient is φ = 19922473030.

The previous prime is 19922473013. The next prime is 19922473033. The reversal of 19922473031 is 13037422991.

Together with previous prime (19922473013) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 19922473031 - 2⁶ = 19922472967 is a prime.

It is a super-2 number, since 2×19922473031² (a number of 21 digits) contains 22 as substring.

Together with 19922473033, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 19922473031.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19922473033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9961236515 + 9961236516.

It is an arithmetic number, because the mean of its divisors is an integer number (9961236516).

Almost surely, 2^19922473031 is an apocalyptic number.

19922473031 is a deficient number, since it is larger than the sum of its proper divisors (1).

19922473031 is an equidigital number, since it uses as much as digits as its factorization.

19922473031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 81648, while the sum is 41.

The spelling of 19922473031 in words is "nineteen billion, nine hundred twenty-two million, four hundred seventy-three thousand, thirty-one".