40303231121 has 4 divisors (see below), whose sum is σ = 40904771952. Its totient is φ = 39701690292.

The previous prime is 40303231097. The next prime is 40303231147. The reversal of 40303231121 is 12113230304.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40303231121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40303231093 and 40303231102.

It is not an unprimeable number, because it can be changed into a prime (40303231021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 300770315 + ... + 300770448.

It is an arithmetic number, because the mean of its divisors is an integer number (10226192988).

Almost surely, 2^40303231121 is an apocalyptic number.

It is an amenable number.

40303231121 is a deficient number, since it is larger than the sum of its proper divisors (601540831).

40303231121 is an equidigital number, since it uses as much as digits as its factorization.

40303231121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 601540830.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 40303231121 its reverse (12113230304), we get a palindrome (52416461425).

The spelling of 40303231121 in words is "forty billion, three hundred three million, two hundred thirty-one thousand, one hundred twenty-one".