20121322310 has 24 divisors (see below), whose sum is σ = 36660129120. Its totient is φ = 7951531472.

The previous prime is 20121322307. The next prime is 20121322367. The reversal of 20121322310 is 1322312102.

It is a super-2 number, since 2×20121322310² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 77150 + ... + 214929.

It is an arithmetic number, because the mean of its divisors is an integer number (1527505380).

Almost surely, 2^20121322310 is an apocalyptic number.

20121322310 is a deficient number, since it is larger than the sum of its proper divisors (16538806810).

20121322310 is an equidigital number, since it uses as much as digits as its factorization.

20121322310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292252 (or 292169 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 20121322310 its reverse (1322312102), we get a palindrome (21443634412).

The spelling of 20121322310 in words is "twenty billion, one hundred twenty-one million, three hundred twenty-two thousand, three hundred ten".