121011011131 has 2 divisors, whose sum is σ = 121011011132. Its totient is φ = 121011011130.

The previous prime is 121011011081. The next prime is 121011011159. The reversal of 121011011131 is 131110110121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 121011011131 - 2⁷ = 121011011003 is a prime.

It is a super-2 number, since 2×121011011131² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (121011011171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60505505565 + 60505505566.

It is an arithmetic number, because the mean of its divisors is an integer number (60505505566).

Almost surely, 2^121011011131 is an apocalyptic number.

121011011131 is a deficient number, since it is larger than the sum of its proper divisors (1).

121011011131 is an equidigital number, since it uses as much as digits as its factorization.

121011011131 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 13.

Adding to 121011011131 its reverse (131110110121), we get a palindrome (252121121252).

The spelling of 121011011131 in words is "one hundred twenty-one billion, eleven million, eleven thousand, one hundred thirty-one".