13121233120142 has 48 divisors (see below), whose sum is σ = 23836112534160. Its totient is φ = 5396451403392.

The previous prime is 13121233120133. The next prime is 13121233120187. The reversal of 13121233120142 is 24102133212131.

It is a super-2 number, since 2×13121233120142² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24520592 + ... + 25049987.

It is an arithmetic number, because the mean of its divisors is an integer number (496585677795).

Almost surely, 2^{13121233120142} is an apocalyptic number.

13121233120142 is a deficient number, since it is larger than the sum of its proper divisors (10714879414018).

13121233120142 is a wasteful number, since it uses less digits than its factorization.

13121233120142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49570705 (or 49570698 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 26.

Adding to 13121233120142 its reverse (24102133212131), we get a palindrome (37223366332273).

The spelling of 13121233120142 in words is "thirteen trillion, one hundred twenty-one billion, two hundred thirty-three million, one hundred twenty thousand, one hundred forty-two".