431401000073 has 2 divisors, whose sum is σ = 431401000074. Its totient is φ = 431401000072.

The previous prime is 431401000013. The next prime is 431401000103. The reversal of 431401000073 is 370000104134.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 309566493769 + 121834506304 = 556387^2 + 349048^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-431401000073 is a prime.

It is a super-2 number, since 2×431401000073² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (431401000013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 215700500036 + 215700500037.

It is an arithmetic number, because the mean of its divisors is an integer number (215700500037).

Almost surely, 2^431401000073 is an apocalyptic number.

It is an amenable number.

431401000073 is a deficient number, since it is larger than the sum of its proper divisors (1).

431401000073 is an equidigital number, since it uses as much as digits as its factorization.

431401000073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1008, while the sum is 23.

The spelling of 431401000073 in words is "four hundred thirty-one billion, four hundred one million, seventy-three", and thus it is an aban number.