2315612321211 has 32 divisors (see below), whose sum is σ = 3737306787840. Its totient is φ = 1244973735936.

The previous prime is 2315612321171. The next prime is 2315612321221. The reversal of 2315612321211 is 1121232165132.

It is a happy number.

It is not a de Polignac number, because 2315612321211 - 2¹⁰ = 2315612320187 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2315612321221) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 86070 + ... + 2153748.

It is an arithmetic number, because the mean of its divisors is an integer number (116790837120).

Almost surely, 2^{2315612321211} is an apocalyptic number.

2315612321211 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2315612321211 is a deficient number, since it is larger than the sum of its proper divisors (1421694466629).

2315612321211 is a wasteful number, since it uses less digits than its factorization.

2315612321211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2070843.

The product of its digits is 4320, while the sum is 30.

Adding to 2315612321211 its reverse (1121232165132), we get a palindrome (3436844486343).

The spelling of 2315612321211 in words is "two trillion, three hundred fifteen billion, six hundred twelve million, three hundred twenty-one thousand, two hundred eleven".