121131402003 has 24 divisors (see below), whose sum is σ = 178379969040. Its totient is φ = 79181219520.

The previous prime is 121131401981. The next prime is 121131402017. The reversal of 121131402003 is 300204131121.

It is not a de Polignac number, because 121131402003 - 2⁵ = 121131401971 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121131402023) 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, 694888 + ... + 851546.

It is an arithmetic number, because the mean of its divisors is an integer number (7432498710).

Almost surely, 2^121131402003 is an apocalyptic number.

121131402003 is a deficient number, since it is larger than the sum of its proper divisors (57248567037).

121131402003 is a wasteful number, since it uses less digits than its factorization.

121131402003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158339 (or 158336 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 121131402003 its reverse (300204131121), we get a palindrome (421335533124).

The spelling of 121131402003 in words is "one hundred twenty-one billion, one hundred thirty-one million, four hundred two thousand, three".