10021120957 has 2 divisors, whose sum is σ = 10021120958. Its totient is φ = 10021120956.

The previous prime is 10021120943. The next prime is 10021120981. The reversal of 10021120957 is 75902112001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5997882916 + 4023238041 = 77446^2 + 63429^2 .

It is a cyclic number.

It is not a de Polignac number, because 10021120957 - 2⁷ = 10021120829 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10021120937) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5010560478 + 5010560479.

It is an arithmetic number, because the mean of its divisors is an integer number (5010560479).

Almost surely, 2^10021120957 is an apocalyptic number.

It is an amenable number.

10021120957 is a deficient number, since it is larger than the sum of its proper divisors (1).

10021120957 is an equidigital number, since it uses as much as digits as its factorization.

10021120957 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1260, while the sum is 28.

Adding to 10021120957 its reverse (75902112001), we get a palindrome (85923232958).

The spelling of 10021120957 in words is "ten billion, twenty-one million, one hundred twenty thousand, nine hundred fifty-seven".