1020123203 has 16 divisors (see below), whose sum is σ = 1150281216. Its totient is φ = 896679840.

The previous prime is 1020123197. The next prime is 1020123217. The reversal of 1020123203 is 3023210201.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1020123203 - 2¹⁴ = 1020106819 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1020122203) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31025 + ... + 54797.

It is an arithmetic number, because the mean of its divisors is an integer number (71892576).

Almost surely, 2^1020123203 is an apocalyptic number.

1020123203 is a deficient number, since it is larger than the sum of its proper divisors (130158013).

1020123203 is a wasteful number, since it uses less digits than its factorization.

1020123203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23914.

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

The square root of 1020123203 is about 31939.3676048854. The cubic root of 1020123203 is about 1006.6632369930.

Adding to 1020123203 its reverse (3023210201), we get a palindrome (4043333404).

The spelling of 1020123203 in words is "one billion, twenty million, one hundred twenty-three thousand, two hundred three".