1212415113 has 32 divisors (see below), whose sum is σ = 2013613056. Its totient is φ = 631798848.

The previous prime is 1212415109. The next prime is 1212415117. The reversal of 1212415113 is 3115142121.

It is an interprime number because it is at equal distance from previous prime (1212415109) and next prime (1212415117).

It is not a de Polignac number, because 1212415113 - 2² = 1212415109 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 1212415113.

It is not an unprimeable number, because it can be changed into a prime (1212415117) 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, 4095 + ... + 49412.

It is an arithmetic number, because the mean of its divisors is an integer number (62925408).

Almost surely, 2^1212415113 is an apocalyptic number.

1212415113 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1212415113 is a deficient number, since it is larger than the sum of its proper divisors (801197943).

1212415113 is a wasteful number, since it uses less digits than its factorization.

1212415113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53613.

The product of its digits is 240, while the sum is 21.

The square root of 1212415113 is about 34819.7517653415. The cubic root of 1212415113 is about 1066.3107324900.

Adding to 1212415113 its reverse (3115142121), we get a palindrome (4327557234).

The spelling of 1212415113 in words is "one billion, two hundred twelve million, four hundred fifteen thousand, one hundred thirteen".