40333421323 has 32 divisors (see below), whose sum is σ = 44384829440. Its totient is φ = 36428071680.

The previous prime is 40333421311. The next prime is 40333421339. The reversal of 40333421323 is 32312433304.

It is a happy number.

It is not a de Polignac number, because 40333421323 - 2²¹ = 40331324171 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40333421291 and 40333421300.

It is not an unprimeable number, because it can be changed into a prime (40333422323) 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, 87112990 + ... + 87113452.

It is an arithmetic number, because the mean of its divisors is an integer number (1387025920).

Almost surely, 2^40333421323 is an apocalyptic number.

40333421323 is a deficient number, since it is larger than the sum of its proper divisors (4051408117).

40333421323 is a wasteful number, since it uses less digits than its factorization.

40333421323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1139.

The product of its (nonzero) digits is 15552, while the sum is 28.

Adding to 40333421323 its reverse (32312433304), we get a palindrome (72645854627).

The spelling of 40333421323 in words is "forty billion, three hundred thirty-three million, four hundred twenty-one thousand, three hundred twenty-three".