1151353121 has 2 divisors, whose sum is σ = 1151353122. Its totient is φ = 1151353120.

The previous prime is 1151353117. The next prime is 1151353139. The reversal of 1151353121 is 1213531511.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 815730721 + 335622400 = 28561^2 + 18320^2 .

It is an emirp because it is prime and its reverse (1213531511) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1151353121 - 2² = 1151353117 is a prime.

It is a super-2 number, since 2×1151353121² = 2651228018472881282, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1151353141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 575676560 + 575676561.

It is an arithmetic number, because the mean of its divisors is an integer number (575676561).

Almost surely, 2^1151353121 is an apocalyptic number.

It is an amenable number.

1151353121 is a deficient number, since it is larger than the sum of its proper divisors (1).

1151353121 is an equidigital number, since it uses as much as digits as its factorization.

1151353121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 450, while the sum is 23.

The square root of 1151353121 is about 33931.5947311646. The cubic root of 1151353121 is about 1048.1003053698.

Adding to 1151353121 its reverse (1213531511), we get a palindrome (2364884632).

The spelling of 1151353121 in words is "one billion, one hundred fifty-one million, three hundred fifty-three thousand, one hundred twenty-one".