20401013033 has 2 divisors, whose sum is σ = 20401013034. Its totient is φ = 20401013032.

The previous prime is 20401013023. The next prime is 20401013053. The reversal of 20401013033 is 33031010402.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14474014864 + 5926998169 = 120308^2 + 76987^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20401013033 is a prime.

It is not a weakly prime, because it can be changed into another prime (20401013023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10200506516 + 10200506517.

It is an arithmetic number, because the mean of its divisors is an integer number (10200506517).

Almost surely, 2^20401013033 is an apocalyptic number.

It is an amenable number.

20401013033 is a deficient number, since it is larger than the sum of its proper divisors (1).

20401013033 is an equidigital number, since it uses as much as digits as its factorization.

20401013033 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 20401013033 its reverse (33031010402), we get a palindrome (53432023435).

The spelling of 20401013033 in words is "twenty billion, four hundred one million, thirteen thousand, thirty-three".