13123212021130 has 16 divisors (see below), whose sum is σ = 23635603659240. Its totient is φ = 5246213248192.

The previous prime is 13123212021119. The next prime is 13123212021173. The reversal of 13123212021130 is 3112021232131.

It can be written as a sum of positive squares in 4 ways, for example, as 3743834140201 + 9379377880929 = 1934899^2 + 3062577^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 383927089 + ... + 383961268.

Almost surely, 2^{13123212021130} is an apocalyptic number.

13123212021130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13123212021130 is a deficient number, since it is larger than the sum of its proper divisors (10512391638110).

13123212021130 is a wasteful number, since it uses less digits than its factorization.

13123212021130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 767890073.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 13123212021130 its reverse (3112021232131), we get a palindrome (16235233253261).

The spelling of 13123212021130 in words is "thirteen trillion, one hundred twenty-three billion, two hundred twelve million, twenty-one thousand, one hundred thirty".