1151203120 has 40 divisors (see below), whose sum is σ = 2678404464. Its totient is φ = 460161792.

The previous prime is 1151203117. The next prime is 1151203133. The reversal of 1151203120 is 213021511.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 1151203094 and 1151203103.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 135642 + ... + 143878.

Almost surely, 2^1151203120 is an apocalyptic number.

1151203120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1151203120 is an abundant number, since it is smaller than the sum of its proper divisors (1527201344).

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

1151203120 is a wasteful number, since it uses less digits than its factorization.

1151203120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9997 (or 9991 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 16.

The square root of 1151203120 is about 33929.3843150742. The cubic root of 1151203120 is about 1048.0547870665.

Adding to 1151203120 its reverse (213021511), we get a palindrome (1364224631).

The spelling of 1151203120 in words is "one billion, one hundred fifty-one million, two hundred three thousand, one hundred twenty".