20232019961 has 2 divisors, whose sum is σ = 20232019962. Its totient is φ = 20232019960.

The previous prime is 20232019939. The next prime is 20232020033. The reversal of 20232019961 is 16991023202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18822468025 + 1409551936 = 137195^2 + 37544^2 .

It is a cyclic number.

It is not a de Polignac number, because 20232019961 - 2¹⁴ = 20232003577 is a prime.

It is not a weakly prime, because it can be changed into another prime (20232019061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10116009980 + 10116009981.

It is an arithmetic number, because the mean of its divisors is an integer number (10116009981).

Almost surely, 2^20232019961 is an apocalyptic number.

It is an amenable number.

20232019961 is a deficient number, since it is larger than the sum of its proper divisors (1).

20232019961 is an equidigital number, since it uses as much as digits as its factorization.

20232019961 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11664, while the sum is 35.

The spelling of 20232019961 in words is "twenty billion, two hundred thirty-two million, nineteen thousand, nine hundred sixty-one".