1200156030 has 24 divisors (see below), whose sum is σ = 3120405912. Its totient is φ = 320041584.

The previous prime is 1200155941. The next prime is 1200156043. The reversal of 1200156030 is 306510021.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1200155994 and 1200156012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6667444 + ... + 6667623.

It is an arithmetic number, because the mean of its divisors is an integer number (130016913).

Almost surely, 2^1200156030 is an apocalyptic number.

1200156030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1200156030 is an abundant number, since it is smaller than the sum of its proper divisors (1920249882).

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

1200156030 is a wasteful number, since it uses less digits than its factorization.

1200156030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13335080 (or 13335077 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 1200156030 is about 34643.2681772376. The cubic root of 1200156030 is about 1062.7046245800.

Adding to 1200156030 its reverse (306510021), we get a palindrome (1506666051).

The spelling of 1200156030 in words is "one billion, two hundred million, one hundred fifty-six thousand, thirty".