1231313102 has 8 divisors (see below), whose sum is σ = 1847253576. Its totient is φ = 615561912.

The previous prime is 1231313099. The next prime is 1231313113. The reversal of 1231313102 is 2013131321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1231313102² = 3032263910313724808, 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 3 ways as a sum of consecutive naturals, for example, 29753 + ... + 57860.

It is an arithmetic number, because the mean of its divisors is an integer number (230906697).

Almost surely, 2^1231313102 is an apocalyptic number.

1231313102 is a deficient number, since it is larger than the sum of its proper divisors (615940474).

1231313102 is an equidigital number, since it uses as much as digits as its factorization.

1231313102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94642.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 1231313102 is about 35090.0712737948. The cubic root of 1231313102 is about 1071.8224109687.

Adding to 1231313102 its reverse (2013131321), we get a palindrome (3244444423).

The spelling of 1231313102 in words is "one billion, two hundred thirty-one million, three hundred thirteen thousand, one hundred two".