1355211011 has 24 divisors (see below), whose sum is σ = 1710707712. Its totient is φ = 1050865200.

The previous prime is 1355211001. The next prime is 1355211041. The reversal of 1355211011 is 1101125531.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-1355211011 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1355211001) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 174926 + ... + 182508.

It is an arithmetic number, because the mean of its divisors is an integer number (71279488).

Almost surely, 2^1355211011 is an apocalyptic number.

1355211011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1355211011 is a deficient number, since it is larger than the sum of its proper divisors (355496701).

1355211011 is a wasteful number, since it uses less digits than its factorization.

1355211011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7823 (or 7812 counting only the distinct ones).

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

The square root of 1355211011 is about 36813.1907201753. The cubic root of 1355211011 is about 1106.6296629718.

Adding to 1355211011 its reverse (1101125531), we get a palindrome (2456336542).

The spelling of 1355211011 in words is "one billion, three hundred fifty-five million, two hundred eleven thousand, eleven".