121131002032311 has 4 divisors (see below), whose sum is σ = 161508002709752. Its totient is φ = 80754001354872.

The previous prime is 121131002032253. The next prime is 121131002032321. The reversal of 121131002032311 is 113230200131121.

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

It is not a de Polignac number, because 121131002032311 - 2⁹ = 121131002031799 is a prime.

It is a super-2 number, since 2×121131002032311² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121131002032321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20188500338716 + ... + 20188500338721.

It is an arithmetic number, because the mean of its divisors is an integer number (40377000677438).

Almost surely, 2^{121131002032311} is an apocalyptic number.

121131002032311 is a deficient number, since it is larger than the sum of its proper divisors (40377000677441).

121131002032311 is an equidigital number, since it uses as much as digits as its factorization.

121131002032311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40377000677440.

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 121131002032311 its reverse (113230200131121), we get a palindrome (234361202163432).

The spelling of 121131002032311 in words is "one hundred twenty-one trillion, one hundred thirty-one billion, two million, thirty-two thousand, three hundred eleven".