31432410420 has 96 divisors (see below), whose sum is σ = 92944115712. Its totient is φ = 7920916608.

The previous prime is 31432410419. The next prime is 31432410433. The reversal of 31432410420 is 2401423413.

It is a super-2 number, since 2×31432410420² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22672 + ... + 251751.

It is an arithmetic number, because the mean of its divisors is an integer number (968167872).

Almost surely, 2^31432410420 is an apocalyptic number.

31432410420 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31432410420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46472057856).

31432410420 is an abundant number, since it is smaller than the sum of its proper divisors (61511705292).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31432410420 is a wasteful number, since it uses less digits than its factorization.

31432410420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274541 (or 274539 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 31432410420 its reverse (2401423413), we get a palindrome (33833833833).

The spelling of 31432410420 in words is "thirty-one billion, four hundred thirty-two million, four hundred ten thousand, four hundred twenty".