121331011310031 has 8 divisors (see below), whose sum is σ = 162541386400384. Its totient is φ = 80503988546520.

The previous prime is 121331011310023. The next prime is 121331011310053. The reversal of 121331011310031 is 130013110133121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 121331011310031 - 2³ = 121331011310023 is a prime.

It is a super-2 number, since 2×121331011310031² (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 (121331011312031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 95838080971 + ... + 95838082236.

It is an arithmetic number, because the mean of its divisors is an integer number (20317673300048).

Almost surely, 2^{121331011310031} is an apocalyptic number.

121331011310031 is a deficient number, since it is larger than the sum of its proper divisors (41210375090353).

121331011310031 is a wasteful number, since it uses less digits than its factorization.

121331011310031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191676163421.

The product of its (nonzero) digits is 162, while the sum is 21.

Adding to 121331011310031 its reverse (130013110133121), we get a palindrome (251344121443152).

The spelling of 121331011310031 in words is "one hundred twenty-one trillion, three hundred thirty-one billion, eleven million, three hundred ten thousand, thirty-one".