1211314415 has 4 divisors (see below), whose sum is σ = 1453577304. Its totient is φ = 969051528.

The previous prime is 1211314397. The next prime is 1211314439. The reversal of 1211314415 is 5144131121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5144131121 = 71 ⋅72452551.

It is a cyclic number.

It is not a de Polignac number, because 1211314415 - 2¹² = 1211310319 is a prime.

It is a super-2 number, since 2×1211314415² = 2934565223973584450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 121131437 + ... + 121131446.

It is an arithmetic number, because the mean of its divisors is an integer number (363394326).

Almost surely, 2^1211314415 is an apocalyptic number.

1211314415 is a deficient number, since it is larger than the sum of its proper divisors (242262889).

1211314415 is an equidigital number, since it uses as much as digits as its factorization.

1211314415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242262888.

The product of its digits is 480, while the sum is 23.

The square root of 1211314415 is about 34803.9425209271. The cubic root of 1211314415 is about 1065.9879493561.

Adding to 1211314415 its reverse (5144131121), we get a palindrome (6355445536).

The spelling of 1211314415 in words is "one billion, two hundred eleven million, three hundred fourteen thousand, four hundred fifteen".