1011122013 has 16 divisors (see below), whose sum is σ = 1471421952. Its totient is φ = 612510000.

The previous prime is 1011122011. The next prime is 1011122017. The reversal of 1011122013 is 3102211101.

It is not a de Polignac number, because 1011122013 - 2¹ = 1011122011 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1011122013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1011122011) 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, 78178 + ... + 90188.

It is an arithmetic number, because the mean of its divisors is an integer number (91963872).

Almost surely, 2^1011122013 is an apocalyptic number.

It is an amenable number.

1011122013 is a deficient number, since it is larger than the sum of its proper divisors (460299939).

1011122013 is a wasteful number, since it uses less digits than its factorization.

1011122013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14576.

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

The square root of 1011122013 is about 31798.1448043750. The cubic root of 1011122013 is about 1003.6936776144.

Adding to 1011122013 its reverse (3102211101), we get a palindrome (4113333114).

The spelling of 1011122013 in words is "one billion, eleven million, one hundred twenty-two thousand, thirteen".