1013131421 has 8 divisors (see below), whose sum is σ = 1030937760. Its totient is φ = 995346352.

The previous prime is 1013131349. The next prime is 1013131453. The reversal of 1013131421 is 1241313101.

1013131421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 1013131421 - 2²⁶ = 946022557 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 1013131421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1013130421) 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, 113891 + ... + 122463.

It is an arithmetic number, because the mean of its divisors is an integer number (128867220).

Almost surely, 2^1013131421 is an apocalyptic number.

It is an amenable number.

1013131421 is a deficient number, since it is larger than the sum of its proper divisors (17806339).

1013131421 is an equidigital number, since it uses as much as digits as its factorization.

1013131421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10635.

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 1013131421 is about 31829.7254307982. The cubic root of 1013131421 is about 1004.3581195359.

Adding to 1013131421 its reverse (1241313101), we get a palindrome (2254444522).

The spelling of 1013131421 in words is "one billion, thirteen million, one hundred thirty-one thousand, four hundred twenty-one".