102111021130 has 32 divisors (see below), whose sum is σ = 197972913600. Its totient is φ = 37794822912.

The previous prime is 102111021127. The next prime is 102111021137. The reversal of 102111021130 is 31120111201.

It is a happy number.

It is a super-2 number, since 2×102111021130² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 102111021130.

It is not an unprimeable number, because it can be changed into a prime (102111021137) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6240975 + ... + 6257314.

It is an arithmetic number, because the mean of its divisors is an integer number (6186653550).

Almost surely, 2^102111021130 is an apocalyptic number.

102111021130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102111021130 is a deficient number, since it is larger than the sum of its proper divisors (95861892470).

102111021130 is a wasteful number, since it uses less digits than its factorization.

102111021130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12498358.

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 102111021130 its reverse (31120111201), we get a palindrome (133231132331).

The spelling of 102111021130 in words is "one hundred two billion, one hundred eleven million, twenty-one thousand, one hundred thirty".