40308121293 has 32 divisors (see below), whose sum is σ = 60710307840. Its totient is φ = 23563995840.

The previous prime is 40308121291. The next prime is 40308121327. The reversal of 40308121293 is 39212180304.

40308121293 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 40308121293 - 2¹ = 40308121291 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40308121291) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 997480 + ... + 1037102.

It is an arithmetic number, because the mean of its divisors is an integer number (1897197120).

Almost surely, 2^40308121293 is an apocalyptic number.

It is an amenable number.

40308121293 is a deficient number, since it is larger than the sum of its proper divisors (20402186547).

40308121293 is a wasteful number, since it uses less digits than its factorization.

40308121293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40729.

The product of its (nonzero) digits is 10368, while the sum is 33.

The spelling of 40308121293 in words is "forty billion, three hundred eight million, one hundred twenty-one thousand, two hundred ninety-three".