1212113163 has 8 divisors (see below), whose sum is σ = 1619107648. Its totient is φ = 806597064.

The previous prime is 1212113153. The next prime is 1212113183. The reversal of 1212113163 is 3613112121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1212113163 - 2⁵ = 1212113131 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1212113153) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 367681 + ... + 370962.

It is an arithmetic number, because the mean of its divisors is an integer number (202388456).

Almost surely, 2^1212113163 is an apocalyptic number.

1212113163 is a deficient number, since it is larger than the sum of its proper divisors (406994485).

1212113163 is an equidigital number, since it uses as much as digits as its factorization.

1212113163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 739193.

The product of its digits is 216, while the sum is 21.

The square root of 1212113163 is about 34815.4155942450. The cubic root of 1212113163 is about 1066.2222041593. Note that the first 4 decimals are identical.

Adding to 1212113163 its reverse (3613112121), we get a palindrome (4825225284).

The spelling of 1212113163 in words is "one billion, two hundred twelve million, one hundred thirteen thousand, one hundred sixty-three".