1201321042 has 8 divisors (see below), whose sum is σ = 1803041100. Its totient is φ = 600307344.

The previous prime is 1201320943. The next prime is 1201321061. The reversal of 1201321042 is 2401231021.

It can be written as a sum of positive squares in 2 ways, for example, as 1197782881 + 3538161 = 34609^2 + 1881^2 .

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

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, 172317 + ... + 179152.

Almost surely, 2^1201321042 is an apocalyptic number.

1201321042 is a deficient number, since it is larger than the sum of its proper divisors (601720058).

1201321042 is a wasteful number, since it uses less digits than its factorization.

1201321042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 353180.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 1201321042 is about 34660.0785053929. The cubic root of 1201321042 is about 1063.0483752319.

Adding to 1201321042 its reverse (2401231021), we get a palindrome (3602552063).

The spelling of 1201321042 in words is "one billion, two hundred one million, three hundred twenty-one thousand, forty-two".