15120043402 has 8 divisors (see below), whose sum is σ = 23873752800. Its totient is φ = 7162125804.

The previous prime is 15120043399. The next prime is 15120043429. The reversal of 15120043402 is 20434002151.

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

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, 198947902 + ... + 198947977.

It is an arithmetic number, because the mean of its divisors is an integer number (2984219100).

Almost surely, 2^15120043402 is an apocalyptic number.

15120043402 is a deficient number, since it is larger than the sum of its proper divisors (8753709398).

15120043402 is a wasteful number, since it uses less digits than its factorization.

15120043402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 397895900.

The product of its (nonzero) digits is 960, while the sum is 22.

Adding to 15120043402 its reverse (20434002151), we get a palindrome (35554045553).

The spelling of 15120043402 in words is "fifteen billion, one hundred twenty million, forty-three thousand, four hundred two".