40234643203 has 4 divisors (see below), whose sum is σ = 40603768480. Its totient is φ = 39865517928.

The previous prime is 40234643191. The next prime is 40234643231. The reversal of 40234643203 is 30234643204.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40234643203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40234643303) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 184562475 + ... + 184562692.

It is an arithmetic number, because the mean of its divisors is an integer number (10150942120).

Almost surely, 2^40234643203 is an apocalyptic number.

40234643203 is a deficient number, since it is larger than the sum of its proper divisors (369125277).

40234643203 is a wasteful number, since it uses less digits than its factorization.

40234643203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 369125276.

The product of its (nonzero) digits is 41472, while the sum is 31.

Subtracting from 40234643203 its reverse (30234643204), we obtain a palindrome (9999999999).

The spelling of 40234643203 in words is "forty billion, two hundred thirty-four million, six hundred forty-three thousand, two hundred three".