15412312402 has 4 divisors (see below), whose sum is σ = 23118468606. Its totient is φ = 7706156200.

The previous prime is 15412312393. The next prime is 15412312451. The reversal of 15412312402 is 20421321451.

15412312402 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in only one way, i.e., 14101800001 + 1310512401 = 118751^2 + 36201^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3853078099 + ... + 3853078102.

Almost surely, 2^15412312402 is an apocalyptic number.

15412312402 is a deficient number, since it is larger than the sum of its proper divisors (7706156204).

15412312402 is an equidigital number, since it uses as much as digits as its factorization.

15412312402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7706156203.

The product of its (nonzero) digits is 1920, while the sum is 25.

Adding to 15412312402 its reverse (20421321451), we get a palindrome (35833633853).

The spelling of 15412312402 in words is "fifteen billion, four hundred twelve million, three hundred twelve thousand, four hundred two".