121123132131303 has 24 divisors (see below), whose sum is σ = 181457546395216. Its totient is φ = 80738931168000.

The previous prime is 121123132131283. The next prime is 121123132131377. The reversal of 121123132131303 is 303131231321121.

121123132131303 is a `hidden beast` number, since 1 + 2 + 1 + 1 + 2 + 3 + 1 + 321 + 31 + 303 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-121123132131303 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121123132131403) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28317898 + ... + 32313303.

Almost surely, 2^{121123132131303} is an apocalyptic number.

121123132131303 is a deficient number, since it is larger than the sum of its proper divisors (60334414263913).

121123132131303 is an frugal number, since it uses more digits than its factorization.

121123132131303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60639437 (or 60639425 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

Adding to 121123132131303 its reverse (303131231321121), we get a palindrome (424254363452424).

The spelling of 121123132131303 in words is "one hundred twenty-one trillion, one hundred twenty-three billion, one hundred thirty-two million, one hundred thirty-one thousand, three hundred three".