40103023121 has 16 divisors (see below), whose sum is σ = 46124279040. Its totient is φ = 34154991360.

The previous prime is 40103023111. The next prime is 40103023141. The reversal of 40103023121 is 12132030104.

It is not a de Polignac number, because 40103023121 - 2²⁶ = 40035914257 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40103023121.

It is not an unprimeable number, because it can be changed into a prime (40103023111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4120541 + ... + 4130261.

It is an arithmetic number, because the mean of its divisors is an integer number (2882767440).

Almost surely, 2^40103023121 is an apocalyptic number.

It is an amenable number.

40103023121 is a deficient number, since it is larger than the sum of its proper divisors (6021255919).

40103023121 is a wasteful number, since it uses less digits than its factorization.

40103023121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13424.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 40103023121 its reverse (12132030104), we get a palindrome (52235053225).

The spelling of 40103023121 in words is "forty billion, one hundred three million, twenty-three thousand, one hundred twenty-one".