1151203530 has 16 divisors (see below), whose sum is σ = 2762888544. Its totient is φ = 306987600.

The previous prime is 1151203481. The next prime is 1151203541. The reversal of 1151203530 is 353021511.

1151203530 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 1151203497 and 1151203506.

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, 19186696 + ... + 19186755.

It is an arithmetic number, because the mean of its divisors is an integer number (172680534).

Almost surely, 2^1151203530 is an apocalyptic number.

1151203530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1151203530 is an abundant number, since it is smaller than the sum of its proper divisors (1611685014).

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

1151203530 is a wasteful number, since it uses less digits than its factorization.

1151203530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38373461.

The product of its (nonzero) digits is 450, while the sum is 21.

The square root of 1151203530 is about 33929.3903570341. The cubic root of 1151203530 is about 1048.0549114877.

The spelling of 1151203530 in words is "one billion, one hundred fifty-one million, two hundred three thousand, five hundred thirty".