1201102000 has 80 divisors (see below), whose sum is σ = 3319198272. Its totient is φ = 411801600.

The previous prime is 1201101991. The next prime is 1201102013. The reversal of 1201102000 is 2011021.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (7).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28897 + ... + 56896.

Almost surely, 2^1201102000 is an apocalyptic number.

1201102000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1201102000 is an abundant number, since it is smaller than the sum of its proper divisors (2118096272).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1201102000 is an equidigital number, since it uses as much as digits as its factorization.

1201102000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85823 (or 85807 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 7.

The square root of 1201102000 is about 34656.9185012170. The cubic root of 1201102000 is about 1062.9837612534.

Adding to 1201102000 its reverse (2011021), we get a palindrome (1203113021).

The spelling of 1201102000 in words is "one billion, two hundred one million, one hundred two thousand".