1023111013 has 8 divisors (see below), whose sum is σ = 1051477632. Its totient is φ = 994782096.

The previous prime is 1023110969. The next prime is 1023111059. The reversal of 1023111013 is 3101113201.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1023111013 is a prime.

It is a super-2 number, since 2×1023111013² = 2093512289843772338, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1023110984 and 1023111002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1023111413) 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, 50856 + ... + 68062.

It is an arithmetic number, because the mean of its divisors is an integer number (131434704).

Almost surely, 2^1023111013 is an apocalyptic number.

It is an amenable number.

1023111013 is a deficient number, since it is larger than the sum of its proper divisors (28366619).

1023111013 is a wasteful number, since it uses less digits than its factorization.

1023111013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18851.

The product of its (nonzero) digits is 18, while the sum is 13.

The square root of 1023111013 is about 31986.1065620685. The cubic root of 1023111013 is about 1007.6450748857.

Adding to 1023111013 its reverse (3101113201), we get a palindrome (4124224214).

The spelling of 1023111013 in words is "one billion, twenty-three million, one hundred eleven thousand, thirteen".