1201163623 has 8 divisors (see below), whose sum is σ = 1311189120. Its totient is φ = 1091276280.

The previous prime is 1201163617. The next prime is 1201163629. The reversal of 1201163623 is 3263611021.

It is an interprime number because it is at equal distance from previous prime (1201163617) and next prime (1201163629).

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

It is a cyclic number.

It is not a de Polignac number, because 1201163623 - 2⁹ = 1201163111 is a prime.

It is a super-2 number, since 2×1201163623² = 2885588098436972258, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201163629) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15915 + ... + 51532.

It is an arithmetic number, because the mean of its divisors is an integer number (163898640).

Almost surely, 2^1201163623 is an apocalyptic number.

1201163623 is a deficient number, since it is larger than the sum of its proper divisors (110025497).

1201163623 is a wasteful number, since it uses less digits than its factorization.

1201163623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69077.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 1201163623 is about 34657.8075330798. The cubic root of 1201163623 is about 1063.0019398727.

Adding to 1201163623 its reverse (3263611021), we get a palindrome (4464774644).

The spelling of 1201163623 in words is "one billion, two hundred one million, one hundred sixty-three thousand, six hundred twenty-three".