1213203112310 has 48 divisors (see below), whose sum is σ = 2544225699744. Its totient is φ = 415312345728.

The previous prime is 1213203112307. The next prime is 1213203112321. The reversal of 1213203112310 is 132113023121.

It is a happy number.

It is a super-2 number, since 2×1213203112310² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1596359 + ... + 2230418.

It is an arithmetic number, because the mean of its divisors is an integer number (53004702078).

Almost surely, 2^{1213203112310} is an apocalyptic number.

1213203112310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1213203112310 is an abundant number, since it is smaller than the sum of its proper divisors (1331022587434).

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

1213203112310 is a wasteful number, since it uses less digits than its factorization.

1213203112310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3827445 (or 3827438 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 1213203112310 its reverse (132113023121), we get a palindrome (1345316135431).

The spelling of 1213203112310 in words is "one trillion, two hundred thirteen billion, two hundred three million, one hundred twelve thousand, three hundred ten".