1121210013 has 48 divisors (see below), whose sum is σ = 1901793600. Its totient is φ = 581011200.

The previous prime is 1121210011. The next prime is 1121210039. The reversal of 1121210013 is 3100121211.

It is not a de Polignac number, because 1121210013 - 2¹ = 1121210011 is a prime.

It is a super-2 number, since 2×1121210013² = 2514223786502920338, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121210011) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1068313 + ... + 1069361.

It is an arithmetic number, because the mean of its divisors is an integer number (39620700).

Almost surely, 2^1121210013 is an apocalyptic number.

It is an amenable number.

1121210013 is a deficient number, since it is larger than the sum of its proper divisors (780583587).

1121210013 is a wasteful number, since it uses less digits than its factorization.

1121210013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1738 (or 1731 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 12.

The square root of 1121210013 is about 33484.4742082058. The cubic root of 1121210013 is about 1038.8726729938.

Adding to 1121210013 its reverse (3100121211), we get a palindrome (4221331224).

The spelling of 1121210013 in words is "one billion, one hundred twenty-one million, two hundred ten thousand, thirteen".