1223861310 has 96 divisors (see below), whose sum is σ = 3641863680. Its totient is φ = 279336384.

The previous prime is 1223861299. The next prime is 1223861351. The reversal of 1223861310 is 131683221.

It is a happy number.

1223861310 is a `hidden beast` number, since 1 + 2 + 2 + 38 + 613 + 10 = 666.

It is a super-2 number, since 2×1223861310² = 2995673012229832200, which 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 47 ways as a sum of consecutive naturals, for example, 792399 + ... + 793941.

It is an arithmetic number, because the mean of its divisors is an integer number (37936080).

Almost surely, 2^1223861310 is an apocalyptic number.

1223861310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1223861310, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1820931840).

1223861310 is an abundant number, since it is smaller than the sum of its proper divisors (2418002370).

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

1223861310 is a wasteful number, since it uses less digits than its factorization.

1223861310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2822 (or 2819 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 1223861310 is about 34983.7292180236. The cubic root of 1223861310 is about 1069.6558447140.

The spelling of 1223861310 in words is "one billion, two hundred twenty-three million, eight hundred sixty-one thousand, three hundred ten".