1201442513 has 16 divisors (see below), whose sum is σ = 1343454336. Its totient is φ = 1068545280.

The previous prime is 1201442509. The next prime is 1201442533. The reversal of 1201442513 is 3152441021.

It is a cyclic number.

It is not a de Polignac number, because 1201442513 - 2² = 1201442509 is a prime.

It is a super-2 number, since 2×1201442513² = 2886928224087510338, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1201442533) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13943 + ... + 50963.

It is an arithmetic number, because the mean of its divisors is an integer number (83965896).

Almost surely, 2^1201442513 is an apocalyptic number.

It is an amenable number.

1201442513 is a deficient number, since it is larger than the sum of its proper divisors (142011823).

1201442513 is a wasteful number, since it uses less digits than its factorization.

1201442513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37144.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 1201442513 is about 34661.8307796919. The cubic root of 1201442513 is about 1063.0842038995.

Adding to 1201442513 its reverse (3152441021), we get a palindrome (4353883534).

The spelling of 1201442513 in words is "one billion, two hundred one million, four hundred forty-two thousand, five hundred thirteen".