1145231122 has 32 divisors (see below), whose sum is σ = 1988853120. Its totient is φ = 484444800.

The previous prime is 1145231119. The next prime is 1145231159. The reversal of 1145231122 is 2211325411.

It is a junction number, because it is equal to n+sod(n) for n = 1145231093 and 1145231102.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 534838 + ... + 536974.

It is an arithmetic number, because the mean of its divisors is an integer number (62151660).

Almost surely, 2^1145231122 is an apocalyptic number.

1145231122 is a deficient number, since it is larger than the sum of its proper divisors (843621998).

1145231122 is a wasteful number, since it uses less digits than its factorization.

1145231122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2626.

The product of its digits is 480, while the sum is 22.

The square root of 1145231122 is about 33841.2635993398. The cubic root of 1145231122 is about 1046.2393427589.

Adding to 1145231122 its reverse (2211325411), we get a palindrome (3356556533).

The spelling of 1145231122 in words is "one billion, one hundred forty-five million, two hundred thirty-one thousand, one hundred twenty-two".