31432410421 has 4 divisors (see below), whose sum is σ = 31965163200. Its totient is φ = 30899657644.

The previous prime is 31432410419. The next prime is 31432410433. The reversal of 31432410421 is 12401423413.

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 not a de Polignac number, because 31432410421 - 2¹ = 31432410419 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 (31432410221) 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, 266376301 + ... + 266376418.

It is an arithmetic number, because the mean of its divisors is an integer number (7991290800).

Almost surely, 2^31432410421 is an apocalyptic number.

It is an amenable number.

31432410421 is a deficient number, since it is larger than the sum of its proper divisors (532752779).

31432410421 is an equidigital number, since it uses as much as digits as its factorization.

31432410421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 532752778.

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

Adding to 31432410421 its reverse (12401423413), we get a palindrome (43833833834).

The spelling of 31432410421 in words is "thirty-one billion, four hundred thirty-two million, four hundred ten thousand, four hundred twenty-one".