1051523013 has 8 divisors (see below), whose sum is σ = 1402658208. Its totient is φ = 700701584.

The previous prime is 1051522987. The next prime is 1051523027. The reversal of 1051523013 is 3103251501.

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

It is a cyclic number.

It is not a de Polignac number, because 1051523013 - 2⁹ = 1051522501 is a prime.

It is a super-2 number, since 2×1051523013² = 2211401293737196338, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1051523113) 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, 70506 + ... + 84107.

It is an arithmetic number, because the mean of its divisors is an integer number (175332276).

Almost surely, 2^1051523013 is an apocalyptic number.

It is an amenable number.

1051523013 is a deficient number, since it is larger than the sum of its proper divisors (351135195).

1051523013 is a wasteful number, since it uses less digits than its factorization.

1051523013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156883.

The product of its (nonzero) digits is 450, while the sum is 21.

The square root of 1051523013 is about 32427.1955771695. The cubic root of 1051523013 is about 1016.8875431711.

Adding to 1051523013 its reverse (3103251501), we get a palindrome (4154774514).

The spelling of 1051523013 in words is "one billion, fifty-one million, five hundred twenty-three thousand, thirteen".