102012031130 has 32 divisors (see below), whose sum is σ = 193304145600. Its totient is φ = 38653552512.

The previous prime is 102012031129. The next prime is 102012031139. The reversal of 102012031130 is 31130210201.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (102012031139) 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, 2869001 + ... + 2904339.

It is an arithmetic number, because the mean of its divisors is an integer number (6040754550).

Almost surely, 2^102012031130 is an apocalyptic number.

102012031130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102012031130 is a deficient number, since it is larger than the sum of its proper divisors (91292114470).

102012031130 is a wasteful number, since it uses less digits than its factorization.

102012031130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50558.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 102012031130 its reverse (31130210201), we get a palindrome (133142241331).

The spelling of 102012031130 in words is "one hundred two billion, twelve million, thirty-one thousand, one hundred thirty".