131121123233330 has 16 divisors (see below), whose sum is σ = 236022597361944. Its totient is φ = 52447432506240.

The previous prime is 131121123233311. The next prime is 131121123233383. The reversal of 131121123233330 is 33332321121131.

It can be written as a sum of positive squares in 4 ways, for example, as 130753987822441 + 367135410889 = 11434771^2 + 605917^2 .

It is a super-2 number, since 2×131121123233330² (a number of 29 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 131121123233293 and 131121123233302.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 126556661 + ... + 127588520.

Almost surely, 2^{131121123233330} is an apocalyptic number.

131121123233330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131121123233330 is a deficient number, since it is larger than the sum of its proper divisors (104901474128614).

131121123233330 is a wasteful number, since it uses less digits than its factorization.

131121123233330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254196781.

The product of its (nonzero) digits is 5832, while the sum is 29.

Adding to 131121123233330 its reverse (33332321121131), we get a palindrome (164453444354461).

The spelling of 131121123233330 in words is "one hundred thirty-one trillion, one hundred twenty-one billion, one hundred twenty-three million, two hundred thirty-three thousand, three hundred thirty".