10020403331 has 4 divisors (see below), whose sum is σ = 10547793000. Its totient is φ = 9493013664.

The previous prime is 10020403291. The next prime is 10020403343. The reversal of 10020403331 is 13330402001.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10020403331 is a prime.

It is a super-2 number, since 2×10020403331² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10020403231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 263694806 + ... + 263694843.

It is an arithmetic number, because the mean of its divisors is an integer number (2636948250).

Almost surely, 2^10020403331 is an apocalyptic number.

10020403331 is a deficient number, since it is larger than the sum of its proper divisors (527389669).

10020403331 is an equidigital number, since it uses as much as digits as its factorization.

10020403331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 527389668.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 10020403331 its reverse (13330402001), we get a palindrome (23350805332).

The spelling of 10020403331 in words is "ten billion, twenty million, four hundred three thousand, three hundred thirty-one".