31453053420 has 96 divisors (see below), whose sum is σ = 88608199680. Its totient is φ = 8336252160.

The previous prime is 31453053377. The next prime is 31453053461. The reversal of 31453053420 is 2435035413.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 6957921 + ... + 6962439.

It is an arithmetic number, because the mean of its divisors is an integer number (923002080).

Almost surely, 2^31453053420 is an apocalyptic number.

31453053420 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

31453053420 is an abundant number, since it is smaller than the sum of its proper divisors (57155146260).

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

31453053420 is a wasteful number, since it uses less digits than its factorization.

31453053420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5215 (or 5213 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 30.

Adding to 31453053420 its reverse (2435035413), we get a palindrome (33888088833).

The spelling of 31453053420 in words is "thirty-one billion, four hundred fifty-three million, fifty-three thousand, four hundred twenty".