1013210261 has 8 divisors (see below), whose sum is σ = 1158515520. Its totient is φ = 868045248.

The previous prime is 1013210243. The next prime is 1013210267. The reversal of 1013210261 is 1620123101.

1013210261 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 not a de Polignac number, because 1013210261 - 2⁶ = 1013210197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1013210267) 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, 19091 + ... + 48896.

It is an arithmetic number, because the mean of its divisors is an integer number (144814440).

Almost surely, 2^1013210261 is an apocalyptic number.

It is an amenable number.

1013210261 is a deficient number, since it is larger than the sum of its proper divisors (145305259).

1013210261 is an equidigital number, since it uses as much as digits as its factorization.

1013210261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70123.

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

The square root of 1013210261 is about 31830.9638716769. The cubic root of 1013210261 is about 1004.3841712861.

Adding to 1013210261 its reverse (1620123101), we get a palindrome (2633333362).

The spelling of 1013210261 in words is "one billion, thirteen million, two hundred ten thousand, two hundred sixty-one".