1021112013 has 8 divisors (see below), whose sum is σ = 1393145248. Its totient is φ = 664910064.

The previous prime is 1021111951. The next prime is 1021112017. The reversal of 1021112013 is 3102111201.

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

It is not a de Polignac number, because 1021112013 - 2¹² = 1021107917 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1021112013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021112017) 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, 3957670 + ... + 3957927.

It is an arithmetic number, because the mean of its divisors is an integer number (174143156).

Almost surely, 2^1021112013 is an apocalyptic number.

It is an amenable number.

1021112013 is a deficient number, since it is larger than the sum of its proper divisors (372033235).

1021112013 is an equidigital number, since it uses as much as digits as its factorization.

1021112013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7915643.

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

The square root of 1021112013 is about 31954.8433418160. The cubic root of 1021112013 is about 1006.9883863576.

Adding to 1021112013 its reverse (3102111201), we get a palindrome (4123223214).

It can be divided in two parts, 102111201 and 3, that multiplied together give a palindrome (306333603).

The spelling of 1021112013 in words is "one billion, twenty-one million, one hundred twelve thousand, thirteen".