7981200431 has 2 divisors, whose sum is σ = 7981200432. Its totient is φ = 7981200430.

The previous prime is 7981200391. The next prime is 7981200433. The reversal of 7981200431 is 1340021897.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 7981200431 - 2²² = 7977006127 is a prime.

It is a super-2 number, since 2×7981200431² (a number of 21 digits) contains 22 as substring.

Together with 7981200433, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 7981200391 and 7981200400.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7981200433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3990600215 + 3990600216.

It is an arithmetic number, because the mean of its divisors is an integer number (3990600216).

Almost surely, 2^7981200431 is an apocalyptic number.

7981200431 is a deficient number, since it is larger than the sum of its proper divisors (1).

7981200431 is an equidigital number, since it uses as much as digits as its factorization.

7981200431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 7981200431 is about 89337.5645011660. The cubic root of 7981200431 is about 1998.4321404794.

The spelling of 7981200431 in words is "seven billion, nine hundred eighty-one million, two hundred thousand, four hundred thirty-one".