1201320424 has 16 divisors (see below), whose sum is σ = 2253240900. Its totient is φ = 600456192.

The previous prime is 1201320409. The next prime is 1201320431. The reversal of 1201320424 is 4240231021.

It can be written as a sum of positive squares in 2 ways, for example, as 886967524 + 314352900 = 29782^2 + 17730^2 .

It is a super-2 number, since 2×1201320424² = 2886341522239079552, which contains 22 as substring.

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, 1162 + ... + 49030.

Almost surely, 2^1201320424 is an apocalyptic number.

It is an amenable number.

1201320424 is a deficient number, since it is larger than the sum of its proper divisors (1051920476).

1201320424 is a wasteful number, since it uses less digits than its factorization.

1201320424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51012 (or 51008 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 1201320424 is about 34660.0695902360. The cubic root of 1201320424 is about 1063.0481929425.

Adding to 1201320424 its reverse (4240231021), we get a palindrome (5441551445).

The spelling of 1201320424 in words is "one billion, two hundred one million, three hundred twenty thousand, four hundred twenty-four".