40231314421 has 4 divisors (see below), whose sum is σ = 40231964844. Its totient is φ = 40230664000.

The previous prime is 40231314367. The next prime is 40231314433. The reversal of 40231314421 is 12441313204.

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

It can be written as a sum of positive squares in 2 ways, for example, as 12345654321 + 27885660100 = 111111^2 + 166990^2 .

It is a cyclic number.

It is not a de Polignac number, because 40231314421 - 2¹³ = 40231306229 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40231314121) 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, 221380 + ... + 359821.

It is an arithmetic number, because the mean of its divisors is an integer number (10057991211).

Almost surely, 2^40231314421 is an apocalyptic number.

It is an amenable number.

40231314421 is a deficient number, since it is larger than the sum of its proper divisors (650423).

40231314421 is an equidigital number, since it uses as much as digits as its factorization.

40231314421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 650422.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 40231314421 its reverse (12441313204), we get a palindrome (52672627625).

The spelling of 40231314421 in words is "forty billion, two hundred thirty-one million, three hundred fourteen thousand, four hundred twenty-one".