1010332421 has 12 divisors (see below), whose sum is σ = 1215813420. Its totient is φ = 836136000.

The previous prime is 1010332399. The next prime is 1010332441. The reversal of 1010332421 is 1242330101.

It can be written as a sum of positive squares in 2 ways, for example, as 216501796 + 793830625 = 14714^2 + 28175^2 .

It is a de Polignac number, because none of the positive numbers 2^k-1010332421 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 1010332421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1010332441) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 354080 + ... + 356921.

It is an arithmetic number, because the mean of its divisors is an integer number (101317785).

Almost surely, 2^1010332421 is an apocalyptic number.

It is an amenable number.

1010332421 is a deficient number, since it is larger than the sum of its proper divisors (205480999).

1010332421 is an equidigital number, since it uses as much as digits as its factorization.

1010332421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 711044 (or 711037 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 1010332421 is about 31785.7266866749. The cubic root of 1010332421 is about 1003.4323458564.

Adding to 1010332421 its reverse (1242330101), we get a palindrome (2252662522).

It can be divided in two parts, 10103 and 32421, that added together give a palindrome (42524).

The spelling of 1010332421 in words is "one billion, ten million, three hundred thirty-two thousand, four hundred twenty-one".