1203123231 has 12 divisors (see below), whose sum is σ = 1739059608. Its totient is φ = 801521424.

The previous prime is 1203123217. The next prime is 1203123241. The reversal of 1203123231 is 1323213021.

1203123231 is a `hidden beast` number, since 120 + 312 + 3 + 231 = 666.

It is not a de Polignac number, because 1203123231 - 2¹⁷ = 1202992159 is a prime.

It is a super-2 number, since 2×1203123231² = 2895011017943758722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1203123241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32925 + ... + 59078.

It is an arithmetic number, because the mean of its divisors is an integer number (144921634).

Almost surely, 2^1203123231 is an apocalyptic number.

1203123231 is a deficient number, since it is larger than the sum of its proper divisors (535936377).

1203123231 is a wasteful number, since it uses less digits than its factorization.

1203123231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93462 (or 93459 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 1203123231 is about 34686.0668136357. The cubic root of 1203123231 is about 1063.5796950045.

Adding to 1203123231 its reverse (1323213021), we get a palindrome (2526336252).

The spelling of 1203123231 in words is "one billion, two hundred three million, one hundred twenty-three thousand, two hundred thirty-one".