121230031332331 has 4 divisors (see below), whose sum is σ = 123809393701152. Its totient is φ = 118650668963512.

The previous prime is 121230031332313. The next prime is 121230031332383. The reversal of 121230031332331 is 133233130032121.

It is a happy number.

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 121230031332331 - 2⁴³ = 112433938310123 is a prime.

It is a super-2 number, since 2×121230031332331² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 121230031332331.

It is not an unprimeable number, because it can be changed into a prime (121230031332391) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1289681184340 + ... + 1289681184433.

It is an arithmetic number, because the mean of its divisors is an integer number (30952348425288).

Almost surely, 2^{121230031332331} is an apocalyptic number.

121230031332331 is a deficient number, since it is larger than the sum of its proper divisors (2579362368821).

121230031332331 is an equidigital number, since it uses as much as digits as its factorization.

121230031332331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2579362368820.

The product of its (nonzero) digits is 5832, while the sum is 28.

Adding to 121230031332331 its reverse (133233130032121), we get a palindrome (254463161364452).

The spelling of 121230031332331 in words is "one hundred twenty-one trillion, two hundred thirty billion, thirty-one million, three hundred thirty-two thousand, three hundred thirty-one".