31200443103 has 32 divisors (see below), whose sum is σ = 43086528000. Its totient is φ = 20067336576.

The previous prime is 31200443089. The next prime is 31200443107. The reversal of 31200443103 is 30134400213.

It is not a de Polignac number, because 31200443103 - 2¹⁰ = 31200442079 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 31200443103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31200443107) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12287208 + ... + 12289746.

It is an arithmetic number, because the mean of its divisors is an integer number (1346454000).

Almost surely, 2^31200443103 is an apocalyptic number.

31200443103 is a deficient number, since it is larger than the sum of its proper divisors (11886084897).

31200443103 is a wasteful number, since it uses less digits than its factorization.

31200443103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3471.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 31200443103 its reverse (30134400213), we get a palindrome (61334843316).

The spelling of 31200443103 in words is "thirty-one billion, two hundred million, four hundred forty-three thousand, one hundred three".