40102443031 has 4 divisors (see below), whose sum is σ = 45831363472. Its totient is φ = 34373522592.

The previous prime is 40102442987. The next prime is 40102443061. The reversal of 40102443031 is 13034420104.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 40102443031 - 2⁷ = 40102442903 is a prime.

It is a super-2 number, since 2×40102443031² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40102442993 and 40102443011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40102443061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2864460210 + ... + 2864460223.

It is an arithmetic number, because the mean of its divisors is an integer number (11457840868).

Almost surely, 2^40102443031 is an apocalyptic number.

40102443031 is a deficient number, since it is larger than the sum of its proper divisors (5728920441).

40102443031 is an equidigital number, since it uses as much as digits as its factorization.

40102443031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5728920440.

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 40102443031 its reverse (13034420104), we get a palindrome (53136863135).

The spelling of 40102443031 in words is "forty billion, one hundred two million, four hundred forty-three thousand, thirty-one".