13012103542 has 4 divisors (see below), whose sum is σ = 19518155316. Its totient is φ = 6506051770.

The previous prime is 13012103519. The next prime is 13012103551. The reversal of 13012103542 is 24530121031.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3253025884 + ... + 3253025887.

It is an arithmetic number, because the mean of its divisors is an integer number (4879538829).

Almost surely, 2^13012103542 is an apocalyptic number.

13012103542 is a deficient number, since it is larger than the sum of its proper divisors (6506051774).

13012103542 is an equidigital number, since it uses as much as digits as its factorization.

13012103542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6506051773.

The product of its (nonzero) digits is 720, while the sum is 22.

Adding to 13012103542 its reverse (24530121031), we get a palindrome (37542224573).

The spelling of 13012103542 in words is "thirteen billion, twelve million, one hundred three thousand, five hundred forty-two".