121011332131 has 4 divisors (see below), whose sum is σ = 122469300072. Its totient is φ = 119553364192.

The previous prime is 121011332119. The next prime is 121011332149. The reversal of 121011332131 is 131233110121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 121011332131 - 2⁹ = 121011331619 is a prime.

It is a super-2 number, since 2×121011332131² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121011332099 and 121011332108.

It is not an unprimeable number, because it can be changed into a prime (121011332171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 728983846 + ... + 728984011.

It is an arithmetic number, because the mean of its divisors is an integer number (30617325018).

Almost surely, 2^121011332131 is an apocalyptic number.

121011332131 is a deficient number, since it is larger than the sum of its proper divisors (1457967941).

121011332131 is an equidigital number, since it uses as much as digits as its factorization.

121011332131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1457967940.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 121011332131 its reverse (131233110121), we get a palindrome (252244442252).

The spelling of 121011332131 in words is "one hundred twenty-one billion, eleven million, three hundred thirty-two thousand, one hundred thirty-one".