1121001012013 has 16 divisors (see below), whose sum is σ = 1164205958656. Its totient is φ = 1078506938880.

The previous prime is 1121001011989. The next prime is 1121001012083. The reversal of 1121001012013 is 3102101001211.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1121001012013 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1121001011984 and 1121001012002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121001012083) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2346268 + ... + 2783338.

It is an arithmetic number, because the mean of its divisors is an integer number (72762872416).

Almost surely, 2^{1121001012013} is an apocalyptic number.

It is an amenable number.

1121001012013 is a deficient number, since it is larger than the sum of its proper divisors (43204946643).

1121001012013 is a wasteful number, since it uses less digits than its factorization.

1121001012013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 437884.

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 1121001012013 its reverse (3102101001211), we get a palindrome (4223102013224).

The spelling of 1121001012013 in words is "one trillion, one hundred twenty-one billion, one million, twelve thousand, thirteen".