20413132020 has 72 divisors (see below), whose sum is σ = 62558236104. Its totient is φ = 5387378688.

The previous prime is 20413132001. The next prime is 20413132039. The reversal of 20413132020 is 2023131402.

It is an interprime number because it is at equal distance from previous prime (20413132001) and next prime (20413132039).

It can be written as a sum of positive squares in 4 ways, for example, as 7806782736 + 12606349284 = 88356^2 + 112278^2 .

It is a super-3 number, since 3×20413132020³ (a number of 32 digits) contains 333 as substring.

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 = 20413131984 and 20413132002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 567109 + ... + 602028.

Almost surely, 2^20413132020 is an apocalyptic number.

20413132020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20413132020 is an abundant number, since it is smaller than the sum of its proper divisors (42145104084).

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

20413132020 is a wasteful number, since it uses less digits than its factorization.

20413132020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1169249 (or 1169244 counting only the distinct ones).

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

Adding to 20413132020 its reverse (2023131402), we get a palindrome (22436263422).

The spelling of 20413132020 in words is "twenty billion, four hundred thirteen million, one hundred thirty-two thousand, twenty".