12121123013000 has 64 divisors (see below), whose sum is σ = 28751968131120. Its totient is φ = 4782032064000.

The previous prime is 12121123012981. The next prime is 12121123013119. The reversal of 12121123013000 is 31032112121.

It can be written as a sum of positive squares in 8 ways, for example, as 3225709392676 + 8895413620324 = 1796026^2 + 2982518^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 12121123013000.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 82948391 + ... + 83094390.

Almost surely, 2^{12121123013000} is an apocalyptic number.

12121123013000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12121123013000 is an abundant number, since it is smaller than the sum of its proper divisors (16630845118120).

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

12121123013000 is a wasteful number, since it uses less digits than its factorization.

12121123013000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166042875 (or 166042861 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 12121123013000 its reverse (31032112121), we get a palindrome (12152155125121).

The spelling of 12121123013000 in words is "twelve trillion, one hundred twenty-one billion, one hundred twenty-three million, thirteen thousand".