1231350231415 has 4 divisors (see below), whose sum is σ = 1477620277704. Its totient is φ = 985080185128.

The previous prime is 1231350231413. The next prime is 1231350231427. The reversal of 1231350231415 is 5141320531321.

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

It is a cyclic number.

It is not a de Polignac number, because 1231350231415 - 2¹ = 1231350231413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1231350231413) 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, 123135023137 + ... + 123135023146.

It is an arithmetic number, because the mean of its divisors is an integer number (369405069426).

Almost surely, 2^{1231350231415} is an apocalyptic number.

1231350231415 is a deficient number, since it is larger than the sum of its proper divisors (246270046289).

1231350231415 is an equidigital number, since it uses as much as digits as its factorization.

1231350231415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246270046288.

The product of its (nonzero) digits is 10800, while the sum is 31.

Adding to 1231350231415 its reverse (5141320531321), we get a palindrome (6372670762736).

The spelling of 1231350231415 in words is "one trillion, two hundred thirty-one billion, three hundred fifty million, two hundred thirty-one thousand, four hundred fifteen".