1202118623 has 4 divisors (see below), whose sum is σ = 1220060760. Its totient is φ = 1184176488.

The previous prime is 1202118613. The next prime is 1202118629. The reversal of 1202118623 is 3268112021.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1202118623 - 2⁴ = 1202118607 is a prime.

It is a super-2 number, since 2×1202118623² = 2890178367526832258, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1202118592 and 1202118601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1202118629) 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, 8970968 + ... + 8971101.

It is an arithmetic number, because the mean of its divisors is an integer number (305015190).

Almost surely, 2^1202118623 is an apocalyptic number.

1202118623 is a deficient number, since it is larger than the sum of its proper divisors (17942137).

1202118623 is an equidigital number, since it uses as much as digits as its factorization.

1202118623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17942136.

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 1202118623 is about 34671.5823550065. The cubic root of 1202118623 is about 1063.2835828594.

The spelling of 1202118623 in words is "one billion, two hundred two million, one hundred eighteen thousand, six hundred twenty-three".