33039942031 has 2 divisors, whose sum is σ = 33039942032. Its totient is φ = 33039942030.

The previous prime is 33039941999. The next prime is 33039942079. The reversal of 33039942031 is 13024993033.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 33039942031 - 2⁵ = 33039941999 is a prime.

It is a super-2 number, since 2×33039942031² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (33039952031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16519971015 + 16519971016.

It is an arithmetic number, because the mean of its divisors is an integer number (16519971016).

Almost surely, 2^33039942031 is an apocalyptic number.

33039942031 is a deficient number, since it is larger than the sum of its proper divisors (1).

33039942031 is an equidigital number, since it uses as much as digits as its factorization.

33039942031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 52488, while the sum is 37.

The spelling of 33039942031 in words is "thirty-three billion, thirty-nine million, nine hundred forty-two thousand, thirty-one".