13121010000203 has 32 divisors (see below), whose sum is σ = 16568406973440. Its totient is φ = 10124459136000.

The previous prime is 13121010000149. The next prime is 13121010000253. The reversal of 13121010000203 is 30200001012131.

It is a cyclic number.

It is not a de Polignac number, because 13121010000203 - 2¹⁸ = 13121009738059 is a prime.

It is a super-3 number, since 3×13121010000203³ (a number of 40 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (13121010000253) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 108376703 + ... + 108497703.

It is an arithmetic number, because the mean of its divisors is an integer number (517762717920).

Almost surely, 2^{13121010000203} is an apocalyptic number.

13121010000203 is a deficient number, since it is larger than the sum of its proper divisors (3447396973237).

13121010000203 is a wasteful number, since it uses less digits than its factorization.

13121010000203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160667.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 13121010000203 its reverse (30200001012131), we get a palindrome (43321011012334).

The spelling of 13121010000203 in words is "thirteen trillion, one hundred twenty-one billion, ten million, two hundred three", and thus it is an aban number.