1151430020 has 48 divisors (see below), whose sum is σ = 2741067840. Its totient is φ = 402765696.

The previous prime is 1151430011. The next prime is 1151430023. The reversal of 1151430020 is 200341511.

It is not an unprimeable number, because it can be changed into a prime (1151430023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 111602 + ... + 121481.

It is an arithmetic number, because the mean of its divisors is an integer number (57105580).

Almost surely, 2^1151430020 is an apocalyptic number.

1151430020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1151430020 is an abundant number, since it is smaller than the sum of its proper divisors (1589637820).

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

1151430020 is a wasteful number, since it uses less digits than its factorization.

1151430020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233124 (or 233122 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 1151430020 is about 33932.7278596932. The cubic root of 1151430020 is about 1048.1236390947.

Adding to 1151430020 its reverse (200341511), we get a palindrome (1351771531).

The spelling of 1151430020 in words is "one billion, one hundred fifty-one million, four hundred thirty thousand, twenty".