20434222279931 has 2 divisors, whose sum is σ = 20434222279932. Its totient is φ = 20434222279930.

The previous prime is 20434222279927. The next prime is 20434222279957. The reversal of 20434222279931 is 13997222243402.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20434222279931 - 2² = 20434222279927 is a prime.

It is a super-2 number, since 2×20434222279931² (a number of 27 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 20434222279931.

It is not a weakly prime, because it can be changed into another prime (20434222279921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10217111139965 + 10217111139966.

It is an arithmetic number, because the mean of its divisors is an integer number (10217111139966).

Almost surely, 2^{20434222279931} is an apocalyptic number.

20434222279931 is a deficient number, since it is larger than the sum of its proper divisors (1).

20434222279931 is an equidigital number, since it uses as much as digits as its factorization.

20434222279931 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2612736, while the sum is 50.

The spelling of 20434222279931 in words is "twenty trillion, four hundred thirty-four billion, two hundred twenty-two million, two hundred seventy-nine thousand, nine hundred thirty-one".