403531545040121 has 4 divisors (see below), whose sum is σ = 403558046109072. Its totient is φ = 403505043971172.

The previous prime is 403531545040087. The next prime is 403531545040133. The reversal of 403531545040121 is 121040545135304.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-403531545040121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (403531545840121) 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, 13250511635 + ... + 13250542088.

It is an arithmetic number, because the mean of its divisors is an integer number (100889511527268).

Almost surely, 2^{403531545040121} is an apocalyptic number.

It is an amenable number.

403531545040121 is a deficient number, since it is larger than the sum of its proper divisors (26501068951).

403531545040121 is a wasteful number, since it uses less digits than its factorization.

403531545040121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26501068950.

The product of its (nonzero) digits is 144000, while the sum is 38.

The spelling of 403531545040121 in words is "four hundred three trillion, five hundred thirty-one billion, five hundred forty-five million, forty thousand, one hundred twenty-one".