33420244031 has 2 divisors, whose sum is σ = 33420244032. Its totient is φ = 33420244030.

The previous prime is 33420244027. The next prime is 33420244037. The reversal of 33420244031 is 13044202433.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 33420244031 - 2² = 33420244027 is a prime.

It is a super-2 number, since 2×33420244031² (a number of 22 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (33420244037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16710122015 + 16710122016.

It is an arithmetic number, because the mean of its divisors is an integer number (16710122016).

Almost surely, 2^33420244031 is an apocalyptic number.

33420244031 is a deficient number, since it is larger than the sum of its proper divisors (1).

33420244031 is an equidigital number, since it uses as much as digits as its factorization.

33420244031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6912, while the sum is 26.

Adding to 33420244031 its reverse (13044202433), we get a palindrome (46464446464).

The spelling of 33420244031 in words is "thirty-three billion, four hundred twenty million, two hundred forty-four thousand, thirty-one".