20411421102 has 24 divisors (see below), whose sum is σ = 44254425384. Its totient is φ = 6799240944.

The previous prime is 20411421091. The next prime is 20411421113. The reversal of 20411421102 is 20112411402.

It is an interprime number because it is at equal distance from previous prime (20411421091) and next prime (20411421113).

It is a super-2 number, since 2×20411421102² (a number of 21 digits) contains 22 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 352888 + ... + 406635.

It is an arithmetic number, because the mean of its divisors is an integer number (1843934391).

Almost surely, 2^20411421102 is an apocalyptic number.

20411421102 is an abundant number, since it is smaller than the sum of its proper divisors (23843004282).

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

20411421102 is a wasteful number, since it uses less digits than its factorization.

20411421102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 761024 (or 761021 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 20411421102 its reverse (20112411402), we get a palindrome (40523832504).

The spelling of 20411421102 in words is "twenty billion, four hundred eleven million, four hundred twenty-one thousand, one hundred two".