1150421311 has 4 divisors (see below), whose sum is σ = 1238915272. Its totient is φ = 1061927352.

The previous prime is 1150421267. The next prime is 1150421333. The reversal of 1150421311 is 1131240511.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1150421311 - 2¹³ = 1150413119 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1150421341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44246961 + ... + 44246986.

It is an arithmetic number, because the mean of its divisors is an integer number (309728818).

Almost surely, 2^1150421311 is an apocalyptic number.

1150421311 is a deficient number, since it is larger than the sum of its proper divisors (88493961).

1150421311 is an equidigital number, since it uses as much as digits as its factorization.

1150421311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88493960.

The product of its (nonzero) digits is 120, while the sum is 19.

The square root of 1150421311 is about 33917.8612385864. The cubic root of 1150421311 is about 1047.8174804877.

Adding to 1150421311 its reverse (1131240511), we get a palindrome (2281661822).

The spelling of 1150421311 in words is "one billion, one hundred fifty million, four hundred twenty-one thousand, three hundred eleven".