10203020001203 has 4 divisors (see below), whose sum is σ = 10203107337648. Its totient is φ = 10202932664760.

The previous prime is 10203020001157. The next prime is 10203020001263. The reversal of 10203020001203 is 30210002030201.

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-10203020001203 is a prime.

It is a super-2 number, since 2×10203020001203² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10203020001263) 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, 43492751 + ... + 43726712.

It is an arithmetic number, because the mean of its divisors is an integer number (2550776834412).

Almost surely, 2^{10203020001203} is an apocalyptic number.

10203020001203 is a deficient number, since it is larger than the sum of its proper divisors (87336445).

10203020001203 is an equidigital number, since it uses as much as digits as its factorization.

10203020001203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87336444.

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 10203020001203 its reverse (30210002030201), we get a palindrome (40413022031404).

The spelling of 10203020001203 in words is "ten trillion, two hundred three billion, twenty million, one thousand, two hundred three".