13102123212 has 36 divisors (see below), whose sum is σ = 33322456440. Its totient is φ = 4340578752.

The previous prime is 13102123211. The next prime is 13102123231. The reversal of 13102123212 is 21232120131.

13102123212 is a `hidden beast` number, since 131 + 0 + 212 + 321 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

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 (13102123211) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1110537 + ... + 1122272.

It is an arithmetic number, because the mean of its divisors is an integer number (925623790).

Almost surely, 2^13102123212 is an apocalyptic number.

13102123212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13102123212 is an abundant number, since it is smaller than the sum of its proper divisors (20220333228).

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

13102123212 is a wasteful number, since it uses less digits than its factorization.

13102123212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2232982 (or 2232977 counting only the distinct ones).

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

Adding to 13102123212 its reverse (21232120131), we get a palindrome (34334243343).

The spelling of 13102123212 in words is "thirteen billion, one hundred two million, one hundred twenty-three thousand, two hundred twelve".