101121131 has 2 divisors, whose sum is σ = 101121132. Its totient is φ = 101121130.

The previous prime is 101121109. The next prime is 101121149. The reversal of 101121131 is 131121101.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 101121131 - 2⁶ = 101121067 is a prime.

It is a super-2 number, since 2×101121131² = 20450966269438322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (101121161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50560565 + 50560566.

It is an arithmetic number, because the mean of its divisors is an integer number (50560566).

Almost surely, 2^101121131 is an apocalyptic number.

101121131 is a deficient number, since it is larger than the sum of its proper divisors (1).

101121131 is an equidigital number, since it uses as much as digits as its factorization.

101121131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6, while the sum is 11.

The square root of 101121131 is about 10055.9003077795. The cubic root of 101121131 is about 465.8870507322.

Adding to 101121131 its reverse (131121101), we get a palindrome (232242232).

The spelling of 101121131 in words is "one hundred one million, one hundred twenty-one thousand, one hundred thirty-one".