20201031012 has 24 divisors (see below), whose sum is σ = 47226225312. Its totient is φ = 6720750400.

The previous prime is 20201030999. The next prime is 20201031041. The reversal of 20201031012 is 21013010202.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1609314 + ... + 1621817.

It is an arithmetic number, because the mean of its divisors is an integer number (1967759388).

Almost surely, 2^20201031012 is an apocalyptic number.

It is an amenable number.

20201031012 is an abundant number, since it is smaller than the sum of its proper divisors (27025194300).

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

20201031012 is a wasteful number, since it uses less digits than its factorization.

20201031012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3231659 (or 3231657 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 20201031012 its reverse (21013010202), we get a palindrome (41214041214).

The spelling of 20201031012 in words is "twenty billion, two hundred one million, thirty-one thousand, twelve".