101632078721 has 2 divisors, whose sum is σ = 101632078722. Its totient is φ = 101632078720.

The previous prime is 101632078703. The next prime is 101632078727. The reversal of 101632078721 is 127870236101.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 101623876225 + 8202496 = 318785^2 + 2864^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-101632078721 is a prime.

It is not a weakly prime, because it can be changed into another prime (101632078727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50816039360 + 50816039361.

It is an arithmetic number, because the mean of its divisors is an integer number (50816039361).

Almost surely, 2^101632078721 is an apocalyptic number.

It is an amenable number.

101632078721 is a deficient number, since it is larger than the sum of its proper divisors (1).

101632078721 is an equidigital number, since it uses as much as digits as its factorization.

101632078721 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28224, while the sum is 38.

The spelling of 101632078721 in words is "one hundred one billion, six hundred thirty-two million, seventy-eight thousand, seven hundred twenty-one".