1201420313 has 4 divisors (see below), whose sum is σ = 1202853120. Its totient is φ = 1199987508.

The previous prime is 1201420307. The next prime is 1201420327. The reversal of 1201420313 is 3130241021.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3130241021 = 149 ⋅21008329.

It is a cyclic number.

It is not a de Polignac number, because 1201420313 - 2³⁰ = 127678489 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1201420291 and 1201420300.

It is not an unprimeable number, because it can be changed into a prime (1201420373) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 715145 + ... + 716822.

It is an arithmetic number, because the mean of its divisors is an integer number (300713280).

Almost surely, 2^1201420313 is an apocalyptic number.

It is an amenable number.

1201420313 is a deficient number, since it is larger than the sum of its proper divisors (1432807).

1201420313 is an equidigital number, since it uses as much as digits as its factorization.

1201420313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1432806.

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

The square root of 1201420313 is about 34661.5105412329. The cubic root of 1201420313 is about 1063.0776560444.

Adding to 1201420313 its reverse (3130241021), we get a palindrome (4331661334).

The spelling of 1201420313 in words is "one billion, two hundred one million, four hundred twenty thousand, three hundred thirteen".