40421413123 has 16 divisors (see below), whose sum is σ = 50592648960. Its totient is φ = 31439709216.

The previous prime is 40421413079. The next prime is 40421413141. The reversal of 40421413123 is 32131412404.

It is a cyclic number.

It is not a de Polignac number, because 40421413123 - 2¹³ = 40421404931 is a prime.

It is a super-2 number, since 2×40421413123² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40421411123) 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, 3758965 + ... + 3769702.

It is an arithmetic number, because the mean of its divisors is an integer number (3162040560).

Almost surely, 2^40421413123 is an apocalyptic number.

40421413123 is a deficient number, since it is larger than the sum of its proper divisors (10171235837).

40421413123 is a wasteful number, since it uses less digits than its factorization.

40421413123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7528746.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 40421413123 its reverse (32131412404), we get a palindrome (72552825527).

The spelling of 40421413123 in words is "forty billion, four hundred twenty-one million, four hundred thirteen thousand, one hundred twenty-three".