1151342121 has 8 divisors (see below), whose sum is σ = 1560289024. Its totient is φ = 754978320.

The previous prime is 1151342099. The next prime is 1151342147. The reversal of 1151342121 is 1212431511.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1151342121 - 2¹³ = 1151333929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1151342321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3145561 + ... + 3145926.

It is an arithmetic number, because the mean of its divisors is an integer number (195036128).

Almost surely, 2^1151342121 is an apocalyptic number.

It is an amenable number.

1151342121 is a deficient number, since it is larger than the sum of its proper divisors (408946903).

1151342121 is an equidigital number, since it uses as much as digits as its factorization.

1151342121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6291551.

The product of its digits is 240, while the sum is 21.

The square root of 1151342121 is about 33931.4326399579. The cubic root of 1151342121 is about 1048.0969675175.

Adding to 1151342121 its reverse (1212431511), we get a palindrome (2363773632).

The spelling of 1151342121 in words is "one billion, one hundred fifty-one million, three hundred forty-two thousand, one hundred twenty-one".