102130521045 has 64 divisors (see below), whose sum is σ = 196076574720. Its totient is φ = 44405399808.

The previous prime is 102130521041. The next prime is 102130521067. The reversal of 102130521045 is 540125031201.

It is a happy number.

It is not a de Polignac number, because 102130521045 - 2² = 102130521041 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102130521041) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 46287 + ... + 454316.

It is an arithmetic number, because the mean of its divisors is an integer number (3063696480).

Almost surely, 2^102130521045 is an apocalyptic number.

102130521045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

102130521045 is a deficient number, since it is larger than the sum of its proper divisors (93946053675).

102130521045 is a wasteful number, since it uses less digits than its factorization.

102130521045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 500714.

The product of its (nonzero) digits is 1200, while the sum is 24.

Adding to 102130521045 its reverse (540125031201), we get a palindrome (642255552246).

The spelling of 102130521045 in words is "one hundred two billion, one hundred thirty million, five hundred twenty-one thousand, forty-five".