1131213152 has 12 divisors (see below), whose sum is σ = 2227075956. Its totient is φ = 565606560.

The previous prime is 1131213143. The next prime is 1131213197. The reversal of 1131213152 is 2513121311.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17675174 + ... + 17675237.

It is an arithmetic number, because the mean of its divisors is an integer number (185589663).

Almost surely, 2^1131213152 is an apocalyptic number.

It is an amenable number.

1131213152 is a deficient number, since it is larger than the sum of its proper divisors (1095862804).

1131213152 is an equidigital number, since it uses as much as digits as its factorization.

1131213152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35350421 (or 35350413 counting only the distinct ones).

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

The square root of 1131213152 is about 33633.5123351695. The cubic root of 1131213152 is about 1041.9530459990.

Adding to 1131213152 its reverse (2513121311), we get a palindrome (3644334463).

The spelling of 1131213152 in words is "one billion, one hundred thirty-one million, two hundred thirteen thousand, one hundred fifty-two".