31412302020 has 72 divisors (see below), whose sum is σ = 103946169600. Its totient is φ = 7615103040.

The previous prime is 31412302001. The next prime is 31412302027. The reversal of 31412302020 is 2020321413.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 31412301984 and 31412302002.

It is not an unprimeable number, because it can be changed into a prime (31412302027) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7930420 + ... + 7934379.

It is an arithmetic number, because the mean of its divisors is an integer number (1443696800).

Almost surely, 2^31412302020 is an apocalyptic number.

31412302020 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

31412302020 is an abundant number, since it is smaller than the sum of its proper divisors (72533867580).

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

31412302020 is a wasteful number, since it uses less digits than its factorization.

31412302020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15864825 (or 15864820 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 31412302020 its reverse (2020321413), we get a palindrome (33432623433).

The spelling of 31412302020 in words is "thirty-one billion, four hundred twelve million, three hundred two thousand, twenty".