102132031220 has 24 divisors (see below), whose sum is σ = 221873034600. Its totient is φ = 39444094592.

The previous prime is 102132031219. The next prime is 102132031229. The reversal of 102132031220 is 22130231201.

It can be written as a sum of positive squares in 4 ways, for example, as 15955731856 + 86176299364 = 126316^2 + 293558^2 .

It is a super-2 number, since 2×102132031220² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102132031229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 88044275 + ... + 88045434.

It is an arithmetic number, because the mean of its divisors is an integer number (9244709775).

Almost surely, 2^102132031220 is an apocalyptic number.

102132031220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102132031220 is an abundant number, since it is smaller than the sum of its proper divisors (119741003380).

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

102132031220 is a wasteful number, since it uses less digits than its factorization.

102132031220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176089747 (or 176089745 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 102132031220 its reverse (22130231201), we get a palindrome (124262262421).

The spelling of 102132031220 in words is "one hundred two billion, one hundred thirty-two million, thirty-one thousand, two hundred twenty".