1203312122 has 16 divisors (see below), whose sum is σ = 1914158952. Its totient is φ = 565370880.

The previous prime is 1203312119. The next prime is 1203312133. The reversal of 1203312122 is 2212133021.

It can be written as a sum of positive squares in 4 ways, for example, as 1200553201 + 2758921 = 34649^2 + 1661^2 .

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a self number, because there is not a number n which added to its sum of digits gives 1203312122.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5813 + ... + 49400.

Almost surely, 2^1203312122 is an apocalyptic number.

1203312122 is a deficient number, since it is larger than the sum of its proper divisors (710846830).

1203312122 is a wasteful number, since it uses less digits than its factorization.

1203312122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55873.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 1203312122 is about 34688.7895724253. The cubic root of 1203312122 is about 1063.6353529549.

Adding to 1203312122 its reverse (2212133021), we get a palindrome (3415445143).

The spelling of 1203312122 in words is "one billion, two hundred three million, three hundred twelve thousand, one hundred twenty-two".