1304431240215 has 16 divisors (see below), whose sum is σ = 2094213165408. Its totient is φ = 693322267776.

The previous prime is 1304431240201. The next prime is 1304431240253. The reversal of 1304431240215 is 5120421344031.

It is not a de Polignac number, because 1304431240215 - 2⁵ = 1304431240183 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 148395064 + ... + 148403853.

It is an arithmetic number, because the mean of its divisors is an integer number (130888322838).

Almost surely, 2^{1304431240215} is an apocalyptic number.

1304431240215 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1304431240215 is a deficient number, since it is larger than the sum of its proper divisors (789781925193).

1304431240215 is a wasteful number, since it uses less digits than its factorization.

1304431240215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 296799218.

The product of its (nonzero) digits is 11520, while the sum is 30.

Adding to 1304431240215 its reverse (5120421344031), we get a palindrome (6424852584246).

The spelling of 1304431240215 in words is "one trillion, three hundred four billion, four hundred thirty-one million, two hundred forty thousand, two hundred fifteen".