1231210246215 has 16 divisors (see below), whose sum is σ = 1970095442400. Its totient is φ = 656592448512.

The previous prime is 1231210246171. The next prime is 1231210246249. The reversal of 1231210246215 is 5126420121321.

It is not a de Polignac number, because 1231210246215 - 2⁶ = 1231210246151 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, 3121170 + ... + 3493439.

It is an arithmetic number, because the mean of its divisors is an integer number (123130965150).

Almost surely, 2^{1231210246215} is an apocalyptic number.

1231210246215 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1231210246215 is a deficient number, since it is larger than the sum of its proper divisors (738885196185).

1231210246215 is a wasteful number, since it uses less digits than its factorization.

1231210246215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6627026.

The product of its (nonzero) digits is 5760, while the sum is 30.

Adding to 1231210246215 its reverse (5126420121321), we get a palindrome (6357630367536).

The spelling of 1231210246215 in words is "one trillion, two hundred thirty-one billion, two hundred ten million, two hundred forty-six thousand, two hundred fifteen".