1201443000 has 64 divisors (see below), whose sum is σ = 3748511520. Its totient is φ = 320384000.

The previous prime is 1201442993. The next prime is 1201443031. The reversal of 1201443000 is 3441021.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

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, 197241 + ... + 203240.

Almost surely, 2^1201443000 is an apocalyptic number.

1201443000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1201443000 is an abundant number, since it is smaller than the sum of its proper divisors (2547068520).

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

1201443000 is a wasteful number, since it uses less digits than its factorization.

1201443000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400505 (or 400491 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 1201443000 is about 34661.8378047097. The cubic root of 1201443000 is about 1063.0843475385.

Adding to 1201443000 its reverse (3441021), we get a palindrome (1204884021).

The spelling of 1201443000 in words is "one billion, two hundred one million, four hundred forty-three thousand".