40023401121 has 24 divisors (see below), whose sum is σ = 66777014304. Its totient is φ = 22829746560.

The previous prime is 40023401113. The next prime is 40023401141. The reversal of 40023401121 is 12110432004.

40023401121 is a `hidden beast` number, since 400 + 234 + 0 + 11 + 21 = 666.

It is not a de Polignac number, because 40023401121 - 2³ = 40023401113 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40023401094 and 40023401103.

It is not an unprimeable number, because it can be changed into a prime (40023401141) 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, 11888811 + ... + 11892176.

It is an arithmetic number, because the mean of its divisors is an integer number (2782375596).

Almost surely, 2^40023401121 is an apocalyptic number.

It is an amenable number.

40023401121 is a deficient number, since it is larger than the sum of its proper divisors (26753613183).

40023401121 is a wasteful number, since it uses less digits than its factorization.

40023401121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23781021 (or 23781018 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 40023401121 its reverse (12110432004), we get a palindrome (52133833125).

It can be divided in two parts, 40023 and 401121, that added together give a palindrome (441144).

The spelling of 40023401121 in words is "forty billion, twenty-three million, four hundred one thousand, one hundred twenty-one".