40311023124 has 72 divisors (see below), whose sum is σ = 99866305728. Its totient is φ = 12653343360.

The previous prime is 40311023111. The next prime is 40311023131. The reversal of 40311023124 is 42132011304.

It is a self number, because there is not a number n which added to its sum of digits gives 40311023124.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 695584 + ... + 751304.

It is an arithmetic number, because the mean of its divisors is an integer number (1387032024).

Almost surely, 2^40311023124 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40311023124, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49933152864).

40311023124 is an abundant number, since it is smaller than the sum of its proper divisors (59555282604).

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

40311023124 is a wasteful number, since it uses less digits than its factorization.

40311023124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55933 (or 55912 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 40311023124 its reverse (42132011304), we get a palindrome (82443034428).

The spelling of 40311023124 in words is "forty billion, three hundred eleven million, twenty-three thousand, one hundred twenty-four".