1151120723450 has 48 divisors (see below), whose sum is σ = 2224587807000. Its totient is φ = 442629277440.

The previous prime is 1151120723447. The next prime is 1151120723581. The reversal of 1151120723450 is 543270211511.

It can be written as a sum of positive squares in 12 ways, for example, as 22637308849 + 1128483414601 = 150457^2 + 1062301^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1401305 + ... + 2065404.

Almost surely, 2^{1151120723450} is an apocalyptic number.

1151120723450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1151120723450 is a deficient number, since it is larger than the sum of its proper divisors (1073467083550).

1151120723450 is a wasteful number, since it uses less digits than its factorization.

1151120723450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3466979 (or 3466974 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 32.

Adding to 1151120723450 its reverse (543270211511), we get a palindrome (1694390934961).

The spelling of 1151120723450 in words is "one trillion, one hundred fifty-one billion, one hundred twenty million, seven hundred twenty-three thousand, four hundred fifty".