101121099859877 has 2 divisors, whose sum is σ = 101121099859878. Its totient is φ = 101121099859876.

The previous prime is 101121099859849. The next prime is 101121099859973. The reversal of 101121099859877 is 778958990121101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 80870433854401 + 20250666005476 = 8992799^2 + 4500074^2 .

It is a cyclic number.

It is not a de Polignac number, because 101121099859877 - 2³⁰ = 101120026118053 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101121099859817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50560549929938 + 50560549929939.

It is an arithmetic number, because the mean of its divisors is an integer number (50560549929939).

Almost surely, 2^{101121099859877} is an apocalyptic number.

It is an amenable number.

101121099859877 is a deficient number, since it is larger than the sum of its proper divisors (1).

101121099859877 is an equidigital number, since it uses as much as digits as its factorization.

101121099859877 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 22861440, while the sum is 68.

The spelling of 101121099859877 in words is "one hundred one trillion, one hundred twenty-one billion, ninety-nine million, eight hundred fifty-nine thousand, eight hundred seventy-seven".