102011132412 has 72 divisors (see below), whose sum is σ = 297616711392. Its totient is φ = 28857456000.

The previous prime is 102011132407. The next prime is 102011132459. The reversal of 102011132412 is 214231110201.

102011132412 is a `hidden beast` number, since 10 + 201 + 11 + 32 + 412 = 666.

It is a super-2 number, since 2×102011132412² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1978539 + ... + 2029442.

It is an arithmetic number, because the mean of its divisors is an integer number (4133565436).

Almost surely, 2^102011132412 is an apocalyptic number.

102011132412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

102011132412 is an abundant number, since it is smaller than the sum of its proper divisors (195605578980).

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

102011132412 is a wasteful number, since it uses less digits than its factorization.

102011132412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4008099 (or 4008094 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 102011132412 its reverse (214231110201), we get a palindrome (316242242613).

The spelling of 102011132412 in words is "one hundred two billion, eleven million, one hundred thirty-two thousand, four hundred twelve".