121001111131 has 2 divisors, whose sum is σ = 121001111132. Its totient is φ = 121001111130.

The previous prime is 121001111069. The next prime is 121001111159. The reversal of 121001111131 is 131111100121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 121001111131 - 2²⁹ = 120464240219 is a prime.

It is a super-2 number, since 2×121001111131² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (121001114131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60500555565 + 60500555566.

It is an arithmetic number, because the mean of its divisors is an integer number (60500555566).

Almost surely, 2^121001111131 is an apocalyptic number.

121001111131 is a deficient number, since it is larger than the sum of its proper divisors (1).

121001111131 is an equidigital number, since it uses as much as digits as its factorization.

121001111131 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6, while the sum is 13.

Adding to 121001111131 its reverse (131111100121), we get a palindrome (252112211252).

The spelling of 121001111131 in words is "one hundred twenty-one billion, one million, one hundred eleven thousand, one hundred thirty-one".