1215414210431 has 4 divisors (see below), whose sum is σ = 1217128476600. Its totient is φ = 1213699944264.

The previous prime is 1215414210419. The next prime is 1215414210433. The reversal of 1215414210431 is 1340124145121.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1215414210431 is a prime.

It is a super-2 number, since 2×1215414210431² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1215414210394 and 1215414210403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1215414210433) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 857132021 + ... + 857133438.

It is an arithmetic number, because the mean of its divisors is an integer number (304282119150).

Almost surely, 2^{1215414210431} is an apocalyptic number.

1215414210431 is a deficient number, since it is larger than the sum of its proper divisors (1714266169).

1215414210431 is an equidigital number, since it uses as much as digits as its factorization.

1215414210431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1714266168.

The product of its (nonzero) digits is 3840, while the sum is 29.

Adding to 1215414210431 its reverse (1340124145121), we get a palindrome (2555538355552).

The spelling of 1215414210431 in words is "one trillion, two hundred fifteen billion, four hundred fourteen million, two hundred ten thousand, four hundred thirty-one".