101151121 has 2 divisors, whose sum is σ = 101151122. Its totient is φ = 101151120.

The previous prime is 101151119. The next prime is 101151131. The reversal of 101151121 is 121151101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 81000000 + 20151121 = 9000^2 + 4489^2 .

It is a cyclic number.

It is not a de Polignac number, because 101151121 - 2¹ = 101151119 is a prime.

Together with 101151119, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (101151131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50575560 + 50575561.

It is an arithmetic number, because the mean of its divisors is an integer number (50575561).

Almost surely, 2^101151121 is an apocalyptic number.

It is an amenable number.

101151121 is a deficient number, since it is larger than the sum of its proper divisors (1).

101151121 is an equidigital number, since it uses as much as digits as its factorization.

101151121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10, while the sum is 13.

The square root of 101151121 is about 10057.3913615808. The cubic root of 101151121 is about 465.9331029981.

It can be divided in two parts, 10115 and 1121, that added together give a square (11236 = 106²).

The spelling of 101151121 in words is "one hundred one million, one hundred fifty-one thousand, one hundred twenty-one".