13352220731 has 2 divisors, whose sum is σ = 13352220732. Its totient is φ = 13352220730.

The previous prime is 13352220703. The next prime is 13352220811. The reversal of 13352220731 is 13702225331.

It is a weak prime.

It is an emirp because it is prime and its reverse (13702225331) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13352220731 is a prime.

It is a super-2 number, since 2×13352220731² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13352220694 and 13352220703.

It is not a weakly prime, because it can be changed into another prime (13352220701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6676110365 + 6676110366.

It is an arithmetic number, because the mean of its divisors is an integer number (6676110366).

Almost surely, 2^13352220731 is an apocalyptic number.

13352220731 is a deficient number, since it is larger than the sum of its proper divisors (1).

13352220731 is an equidigital number, since it uses as much as digits as its factorization.

13352220731 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7560, while the sum is 29.

The spelling of 13352220731 in words is "thirteen billion, three hundred fifty-two million, two hundred twenty thousand, seven hundred thirty-one".