102011111110020 has 96 divisors (see below), whose sum is σ = 327274722028800. Its totient is φ = 23256884934144.

The previous prime is 102011111110003. The next prime is 102011111110037. The reversal of 102011111110020 is 20011111110201.

It is an interprime number because it is at equal distance from previous prime (102011111110003) and next prime (102011111110037).

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

It is a junction number, because it is equal to n+sod(n) for n = 102011111109978 and 102011111110005.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 312026335 + ... + 312353094.

It is an arithmetic number, because the mean of its divisors is an integer number (3409111687800).

Almost surely, 2^{102011111110020} is an apocalyptic number.

102011111110020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102011111110020 is an abundant number, since it is smaller than the sum of its proper divisors (225263610918780).

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

102011111110020 is a wasteful number, since it uses less digits than its factorization.

102011111110020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 624379837 (or 624379835 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 12.

Adding to 102011111110020 its reverse (20011111110201), we get a palindrome (122022222220221).

The spelling of 102011111110020 in words is "one hundred two trillion, eleven billion, one hundred eleven million, one hundred ten thousand, twenty".