33013423397 has 2 divisors, whose sum is σ = 33013423398. Its totient is φ = 33013423396.

The previous prime is 33013423307. The next prime is 33013423441. The reversal of 33013423397 is 79332431033.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17339885761 + 15673537636 = 131681^2 + 125194^2 .

It is a cyclic number.

It is not a de Polignac number, because 33013423397 - 2¹⁴ = 33013407013 is a prime.

It is a super-3 number, since 3×33013423397³ (a number of 33 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 33013423397.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (33013423307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16506711698 + 16506711699.

It is an arithmetic number, because the mean of its divisors is an integer number (16506711699).

Almost surely, 2^33013423397 is an apocalyptic number.

It is an amenable number.

33013423397 is a deficient number, since it is larger than the sum of its proper divisors (1).

33013423397 is an equidigital number, since it uses as much as digits as its factorization.

33013423397 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 122472, while the sum is 38.

The spelling of 33013423397 in words is "thirty-three billion, thirteen million, four hundred twenty-three thousand, three hundred ninety-seven".