121101011131 has 4 divisors (see below), whose sum is σ = 121101795072. Its totient is φ = 121100227192.

The previous prime is 121101011111. The next prime is 121101011177. The reversal of 121101011131 is 131110101121.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 121101011131 - 2¹¹ = 121101009083 is a prime.

It is a super-2 number, since 2×121101011131² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121101011111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74596 + ... + 497761.

It is an arithmetic number, because the mean of its divisors is an integer number (30275448768).

Almost surely, 2^121101011131 is an apocalyptic number.

121101011131 is a deficient number, since it is larger than the sum of its proper divisors (783941).

121101011131 is an equidigital number, since it uses as much as digits as its factorization.

121101011131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 783940.

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

Adding to 121101011131 its reverse (131110101121), we get a palindrome (252211112252).

The spelling of 121101011131 in words is "one hundred twenty-one billion, one hundred one million, eleven thousand, one hundred thirty-one".