1013136321 has 8 divisors (see below), whose sum is σ = 1355622880. Its totient is φ = 673036992.

The previous prime is 1013136283. The next prime is 1013136337. The reversal of 1013136321 is 1236313101.

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

It is not a de Polignac number, because 1013136321 - 2²³ = 1004747713 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1013136391) 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, 595816 + ... + 597513.

It is an arithmetic number, because the mean of its divisors is an integer number (169452860).

Almost surely, 2^1013136321 is an apocalyptic number.

It is an amenable number.

1013136321 is a deficient number, since it is larger than the sum of its proper divisors (342486559).

1013136321 is a wasteful number, since it uses less digits than its factorization.

1013136321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1193615.

The product of its (nonzero) digits is 324, while the sum is 21.

The square root of 1013136321 is about 31829.8024027797. The cubic root of 1013136321 is about 1004.3597387226.

Adding to 1013136321 its reverse (1236313101), we get a palindrome (2249449422).

The spelling of 1013136321 in words is "one billion, thirteen million, one hundred thirty-six thousand, three hundred twenty-one".