20132019961 has 2 divisors, whose sum is σ = 20132019962. Its totient is φ = 20132019960.

The previous prime is 20132019959. The next prime is 20132020049. The reversal of 20132019961 is 16991023102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10812048361 + 9319971600 = 103981^2 + 96540^2 .

It is a cyclic number.

It is not a de Polignac number, because 20132019961 - 2¹ = 20132019959 is a prime.

Together with 20132019959, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (20132089961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10066009980 + 10066009981.

It is an arithmetic number, because the mean of its divisors is an integer number (10066009981).

Almost surely, 2^20132019961 is an apocalyptic number.

It is an amenable number.

20132019961 is a deficient number, since it is larger than the sum of its proper divisors (1).

20132019961 is an equidigital number, since it uses as much as digits as its factorization.

20132019961 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5832, while the sum is 34.

The spelling of 20132019961 in words is "twenty billion, one hundred thirty-two million, nineteen thousand, nine hundred sixty-one".