13102121232 has 240 divisors, whose sum is σ = 40111718400. Its totient is φ = 3977061120.

The previous prime is 13102121231. The next prime is 13102121233. The reversal of 13102121232 is 23212120131.

13102121232 is a `hidden beast` number, since 1 + 310 + 2 + 121 + 232 = 666.

It is an interprime number because it is at equal distance from previous prime (13102121231) and next prime (13102121233).

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

It is not an unprimeable number, because it can be changed into a prime (13102121231) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 15181633 + ... + 15182495.

It is an arithmetic number, because the mean of its divisors is an integer number (167132160).

Almost surely, 2^13102121232 is an apocalyptic number.

13102121232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13102121232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20055859200).

13102121232 is an abundant number, since it is smaller than the sum of its proper divisors (27009597168).

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

13102121232 is a wasteful number, since it uses less digits than its factorization.

13102121232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1106 (or 1097 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 13102121232 its reverse (23212120131), we get a palindrome (36314241363).

The spelling of 13102121232 in words is "thirteen billion, one hundred two million, one hundred twenty-one thousand, two hundred thirty-two".