33520612423 has 4 divisors (see below), whose sum is σ = 34676495640. Its totient is φ = 32364729208.

The previous prime is 33520612409. The next prime is 33520612429. The reversal of 33520612423 is 32421602533.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 33520612423 - 2¹³ = 33520604231 is a prime.

It is a super-2 number, since 2×33520612423² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33520612429) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 577941565 + ... + 577941622.

It is an arithmetic number, because the mean of its divisors is an integer number (8669123910).

Almost surely, 2^33520612423 is an apocalyptic number.

33520612423 is a deficient number, since it is larger than the sum of its proper divisors (1155883217).

33520612423 is a wasteful number, since it uses less digits than its factorization.

33520612423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1155883216.

The product of its (nonzero) digits is 25920, while the sum is 31.

The spelling of 33520612423 in words is "thirty-three billion, five hundred twenty million, six hundred twelve thousand, four hundred twenty-three".