203412321310 has 128 divisors (see below), whose sum is σ = 426494066688. Its totient is φ = 69111504000.

The previous prime is 203412321251. The next prime is 203412321313. The reversal of 203412321310 is 13123214302.

It is a super-2 number, since 2×203412321310² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203412321313) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 75030855 + ... + 75033565.

It is an arithmetic number, because the mean of its divisors is an integer number (3331984896).

Almost surely, 2^203412321310 is an apocalyptic number.

203412321310 is an abundant number, since it is smaller than the sum of its proper divisors (223081745378).

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

203412321310 is a wasteful number, since it uses less digits than its factorization.

203412321310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3430.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 203412321310 its reverse (13123214302), we get a palindrome (216535535612).

The spelling of 203412321310 in words is "two hundred three billion, four hundred twelve million, three hundred twenty-one thousand, three hundred ten".