20210101024 has 24 divisors (see below), whose sum is σ = 42129145548. Its totient is φ = 9510635520.

The previous prime is 20210101001. The next prime is 20210101031. The reversal of 20210101024 is 42010101202.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 19636977424 + 573123600 = 140132^2 + 23940^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20210100995 and 20210101013.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18574917 + ... + 18576004.

Almost surely, 2^20210101024 is an apocalyptic number.

It is an amenable number.

20210101024 is an abundant number, since it is smaller than the sum of its proper divisors (21919044524).

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

20210101024 is a wasteful number, since it uses less digits than its factorization.

20210101024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37150948 (or 37150940 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 20210101024 its reverse (42010101202), we get a palindrome (62220202226).

The spelling of 20210101024 in words is "twenty billion, two hundred ten million, one hundred one thousand, twenty-four".