31412312020 has 96 divisors (see below), whose sum is σ = 73606216320. Its totient is φ = 11190620160.

The previous prime is 31412311993. The next prime is 31412312023. The reversal of 31412312020 is 2021321413.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31412312023) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7045632 + ... + 7050088.

It is an arithmetic number, because the mean of its divisors is an integer number (766731420).

Almost surely, 2^31412312020 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31412312020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36803108160).

31412312020 is an abundant number, since it is smaller than the sum of its proper divisors (42193904300).

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

31412312020 is a wasteful number, since it uses less digits than its factorization.

31412312020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5593 (or 5591 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 31412312020 its reverse (2021321413), we get a palindrome (33433633433).

The spelling of 31412312020 in words is "thirty-one billion, four hundred twelve million, three hundred twelve thousand, twenty".