10020619121 has 2 divisors, whose sum is σ = 10020619122. Its totient is φ = 10020619120.

The previous prime is 10020619051. The next prime is 10020619123. The reversal of 10020619121 is 12191602001.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9988003600 + 32615521 = 99940^2 + 5711^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10020619121 is a prime.

Together with 10020619123, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (10020619123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5010309560 + 5010309561.

It is an arithmetic number, because the mean of its divisors is an integer number (5010309561).

Almost surely, 2^10020619121 is an apocalyptic number.

It is an amenable number.

10020619121 is a deficient number, since it is larger than the sum of its proper divisors (1).

10020619121 is an equidigital number, since it uses as much as digits as its factorization.

10020619121 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 23.

The spelling of 10020619121 in words is "ten billion, twenty million, six hundred nineteen thousand, one hundred twenty-one".