10203452643 has 4 divisors (see below), whose sum is σ = 13604603528. Its totient is φ = 6802301760.

The previous prime is 10203452629. The next prime is 10203452729. The reversal of 10203452643 is 34625430201.

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

It is not a de Polignac number, because 10203452643 - 2⁹ = 10203452131 is a prime.

It is a super-2 number, since 2×10203452643² (a number of 21 digits) contains 22 as substring.

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 10203452643.

It is not an unprimeable number, because it can be changed into a prime (10203454643) 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, 1700575438 + ... + 1700575443.

It is an arithmetic number, because the mean of its divisors is an integer number (3401150882).

Almost surely, 2^10203452643 is an apocalyptic number.

10203452643 is a deficient number, since it is larger than the sum of its proper divisors (3401150885).

10203452643 is an equidigital number, since it uses as much as digits as its factorization.

10203452643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3401150884.

The product of its (nonzero) digits is 17280, while the sum is 30.

Adding to 10203452643 its reverse (34625430201), we get a palindrome (44828882844).

The spelling of 10203452643 in words is "ten billion, two hundred three million, four hundred fifty-two thousand, six hundred forty-three".