102111433020 has 72 divisors (see below), whose sum is σ = 318109331904. Its totient is φ = 26493775488.

The previous prime is 102111433009. The next prime is 102111433049. The reversal of 102111433020 is 20334111201.

102111433020 is a `hidden beast` number, since 1 + 0 + 211 + 1 + 433 + 0 + 20 = 666.

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 = 102111432984 and 102111433002.

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, 7659364 + ... + 7672683.

Almost surely, 2^102111433020 is an apocalyptic number.

102111433020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102111433020 is an abundant number, since it is smaller than the sum of its proper divisors (215997898884).

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

102111433020 is a wasteful number, since it uses less digits than its factorization.

102111433020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15332099 (or 15332094 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 102111433020 its reverse (20334111201), we get a palindrome (122445544221).

The spelling of 102111433020 in words is "one hundred two billion, one hundred eleven million, four hundred thirty-three thousand, twenty".