203413213240 has 32 divisors (see below), whose sum is σ = 465182681760. Its totient is φ = 80031427200.

The previous prime is 203413213219. The next prime is 203413213243. The reversal of 203413213240 is 42312314302.

It is a super-2 number, since 2×203413213240² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203413213243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41680596 + ... + 41685475.

It is an arithmetic number, because the mean of its divisors is an integer number (14536958805).

Almost surely, 2^203413213240 is an apocalyptic number.

203413213240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

203413213240 is an abundant number, since it is smaller than the sum of its proper divisors (261769468520).

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

203413213240 is a wasteful number, since it uses less digits than its factorization.

203413213240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83366143 (or 83366139 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 203413213240 its reverse (42312314302), we get a palindrome (245725527542).

The spelling of 203413213240 in words is "two hundred three billion, four hundred thirteen million, two hundred thirteen thousand, two hundred forty".