40072121124 has 48 divisors (see below), whose sum is σ = 106877570688. Its totient is φ = 11447186688.

The previous prime is 40072121093. The next prime is 40072121143. The reversal of 40072121124 is 42112127004.

It is a junction number, because it is equal to n+sod(n) for n = 40072121094 and 40072121103.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 483862 + ... + 560594.

It is an arithmetic number, because the mean of its divisors is an integer number (2226616056).

Almost surely, 2^40072121124 is an apocalyptic number.

It is an amenable number.

40072121124 is an abundant number, since it is smaller than the sum of its proper divisors (66805449564).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40072121124 is a wasteful number, since it uses less digits than its factorization.

40072121124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82964 (or 82962 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 24.

Adding to 40072121124 its reverse (42112127004), we get a palindrome (82184248128).

The spelling of 40072121124 in words is "forty billion, seventy-two million, one hundred twenty-one thousand, one hundred twenty-four".