1311122162 has 16 divisors (see below), whose sum is σ = 2290047552. Its totient is φ = 551307120.

The previous prime is 1311122143. The next prime is 1311122167. The reversal of 1311122162 is 2612211131.

It is not an unprimeable number, because it can be changed into a prime (1311122167) 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, 882764 + ... + 884247.

It is an arithmetic number, because the mean of its divisors is an integer number (143127972).

Almost surely, 2^1311122162 is an apocalyptic number.

1311122162 is a deficient number, since it is larger than the sum of its proper divisors (978925390).

1311122162 is a wasteful number, since it uses less digits than its factorization.

1311122162 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1767073.

The product of its digits is 144, while the sum is 20.

The square root of 1311122162 is about 36209.4209011964. The cubic root of 1311122162 is about 1094.4965227066.

Adding to 1311122162 its reverse (2612211131), we get a palindrome (3923333293).

The spelling of 1311122162 in words is "one billion, three hundred eleven million, one hundred twenty-two thousand, one hundred sixty-two".