39123021012203 has 4 divisors (see below), whose sum is σ = 39124456588608. Its totient is φ = 39121585435800.

The previous prime is 39123021012199. The next prime is 39123021012223. The reversal of 39123021012203 is 30221012032193.

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

It is a cyclic number.

It is not a de Polignac number, because 39123021012203 - 2² = 39123021012199 is a prime.

It is a super-2 number, since 2×39123021012203² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (39123021012223) 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, 717747323 + ... + 717801828.

It is an arithmetic number, because the mean of its divisors is an integer number (9781114147152).

Almost surely, 2^{39123021012203} is an apocalyptic number.

39123021012203 is a deficient number, since it is larger than the sum of its proper divisors (1435576405).

39123021012203 is a wasteful number, since it uses less digits than its factorization.

39123021012203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1435576404.

The product of its (nonzero) digits is 3888, while the sum is 29.

Adding to 39123021012203 its reverse (30221012032193), we get a palindrome (69344033044396).

The spelling of 39123021012203 in words is "thirty-nine trillion, one hundred twenty-three billion, twenty-one million, twelve thousand, two hundred three".