121131502333431 has 8 divisors (see below), whose sum is σ = 164556003170160. Its totient is φ = 79230668192832.

The previous prime is 121131502333403. The next prime is 121131502333487. The reversal of 121131502333431 is 134333205131121.

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

It is not a de Polignac number, because 121131502333431 - 2¹¹ = 121131502331383 is a prime.

It is a super-2 number, since 2×121131502333431² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 121131502333392 and 121131502333401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121131502333531) 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, 380916673846 + ... + 380916674163.

It is an arithmetic number, because the mean of its divisors is an integer number (20569500396270).

Almost surely, 2^{121131502333431} is an apocalyptic number.

121131502333431 is a deficient number, since it is larger than the sum of its proper divisors (43424500836729).

121131502333431 is an equidigital number, since it uses as much as digits as its factorization.

121131502333431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 761833348065.

The product of its (nonzero) digits is 19440, while the sum is 33.

Adding to 121131502333431 its reverse (134333205131121), we get a palindrome (255464707464552).

The spelling of 121131502333431 in words is "one hundred twenty-one trillion, one hundred thirty-one billion, five hundred two million, three hundred thirty-three thousand, four hundred thirty-one".