118101129521 has 2 divisors, whose sum is σ = 118101129522. Its totient is φ = 118101129520.

The previous prime is 118101129479. The next prime is 118101129563. The reversal of 118101129521 is 125921101811.

It is a balanced prime because it is at equal distance from previous prime (118101129479) and next prime (118101129563).

It can be written as a sum of positive squares in only one way, i.e., 107118089521 + 10983040000 = 327289^2 + 104800^2 .

It is a cyclic number.

It is not a de Polignac number, because 118101129521 - 2¹⁸ = 118100867377 is a prime.

It is not a weakly prime, because it can be changed into another prime (118101129121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59050564760 + 59050564761.

It is an arithmetic number, because the mean of its divisors is an integer number (59050564761).

Almost surely, 2^118101129521 is an apocalyptic number.

It is an amenable number.

118101129521 is a deficient number, since it is larger than the sum of its proper divisors (1).

118101129521 is an equidigital number, since it uses as much as digits as its factorization.

118101129521 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1440, while the sum is 32.

The spelling of 118101129521 in words is "one hundred eighteen billion, one hundred one million, one hundred twenty-nine thousand, five hundred twenty-one".