7020620993831 has 2 divisors, whose sum is σ = 7020620993832. Its totient is φ = 7020620993830.

The previous prime is 7020620993807. The next prime is 7020620993833. The reversal of 7020620993831 is 1383990260207.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7020620993831 is a prime.

It is a super-2 number, since 2×7020620993831² (a number of 26 digits) contains 22 as substring.

Together with 7020620993833, 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 7020620993831.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7020620993833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3510310496915 + 3510310496916.

It is an arithmetic number, because the mean of its divisors is an integer number (3510310496916).

Almost surely, 2^{7020620993831} is an apocalyptic number.

7020620993831 is a deficient number, since it is larger than the sum of its proper divisors (1).

7020620993831 is an equidigital number, since it uses as much as digits as its factorization.

7020620993831 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 979776, while the sum is 50.

The spelling of 7020620993831 in words is "seven trillion, twenty billion, six hundred twenty million, nine hundred ninety-three thousand, eight hundred thirty-one".