1151213132 has 12 divisors (see below), whose sum is σ = 2014936056. Its totient is φ = 575517120.

The previous prime is 1151213113. The next prime is 1151213143. The reversal of 1151213132 is 2313121511.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12707 + ... + 49637.

It is an arithmetic number, because the mean of its divisors is an integer number (167911338).

Almost surely, 2^1151213132 is an apocalyptic number.

It is an amenable number.

1151213132 is a deficient number, since it is larger than the sum of its proper divisors (863722924).

1151213132 is a wasteful number, since it uses less digits than its factorization.

1151213132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44728 (or 44726 counting only the distinct ones).

The product of its digits is 180, while the sum is 20.

The square root of 1151213132 is about 33929.5318564816. The cubic root of 1151213132 is about 1048.0578253644.

Adding to 1151213132 its reverse (2313121511), we get a palindrome (3464334643).

The spelling of 1151213132 in words is "one billion, one hundred fifty-one million, two hundred thirteen thousand, one hundred thirty-two".