1151213105 has 24 divisors (see below), whose sum is σ = 1609807680. Its totient is φ = 788024160.

The previous prime is 1151213083. The next prime is 1151213113. The reversal of 1151213105 is 5013121511.

It is a happy number.

It is not a de Polignac number, because 1151213105 - 2⁸ = 1151212849 is a prime.

It is a super-2 number, since 2×1151213105² = 2650583226247482050, which contains 22 as substring.

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, 147860 + ... + 155450.

It is an arithmetic number, because the mean of its divisors is an integer number (67075320).

Almost surely, 2^1151213105 is an apocalyptic number.

It is an amenable number.

1151213105 is a deficient number, since it is larger than the sum of its proper divisors (458594575).

1151213105 is an equidigital number, since it uses as much as digits as its factorization.

1151213105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8229 (or 8222 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 20.

The square root of 1151213105 is about 33929.5314585981. The cubic root of 1151213105 is about 1048.0578171708.

Adding to 1151213105 its reverse (5013121511), we get a palindrome (6164334616).

The spelling of 1151213105 in words is "one billion, one hundred fifty-one million, two hundred thirteen thousand, one hundred five".