12015503042 has 8 divisors (see below), whose sum is σ = 18029366796. Its totient is φ = 6005714112.

The previous prime is 12015503023. The next prime is 12015503053. The reversal of 12015503042 is 24030551021.

It can be written as a sum of positive squares in 2 ways, for example, as 11492054401 + 523448641 = 107201^2 + 22879^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×12015503042² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12015502999 and 12015503017.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1011323 + ... + 1023134.

Almost surely, 2^12015503042 is an apocalyptic number.

12015503042 is a deficient number, since it is larger than the sum of its proper divisors (6013863754).

12015503042 is a wasteful number, since it uses less digits than its factorization.

12015503042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2037412.

The product of its (nonzero) digits is 1200, while the sum is 23.

The spelling of 12015503042 in words is "twelve billion, fifteen million, five hundred three thousand, forty-two".