203010123040 has 96 divisors (see below), whose sum is σ = 499058703360. Its totient is φ = 77976597504.

The previous prime is 203010123011. The next prime is 203010123049. The reversal of 203010123040 is 40321010302.

It is a happy number.

It is a super-2 number, since 2×203010123040² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is not an unprimeable number, because it can be changed into a prime (203010123049) 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, 143881 + ... + 653239.

It is an arithmetic number, because the mean of its divisors is an integer number (5198528160).

Almost surely, 2^203010123040 is an apocalyptic number.

203010123040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 203010123040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (249529351680).

203010123040 is an abundant number, since it is smaller than the sum of its proper divisors (296048580320).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

203010123040 is a wasteful number, since it uses less digits than its factorization.

203010123040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 509474 (or 509466 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 203010123040 its reverse (40321010302), we get a palindrome (243331133342).

The spelling of 203010123040 in words is "two hundred three billion, ten million, one hundred twenty-three thousand, forty".