1231123014 has 96 divisors (see below), whose sum is σ = 2960216064. Its totient is φ = 366690240.

The previous prime is 1231122989. The next prime is 1231123039. The reversal of 1231123014 is 4103211321.

It is an interprime number because it is at equal distance from previous prime (1231122989) and next prime (1231123039).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4350117 + ... + 4350399.

It is an arithmetic number, because the mean of its divisors is an integer number (30835584).

Almost surely, 2^1231123014 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1231123014, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1480108032).

1231123014 is an abundant number, since it is smaller than the sum of its proper divisors (1729093050).

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

1231123014 is a wasteful number, since it uses less digits than its factorization.

1231123014 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 602 (or 599 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 1231123014 is about 35087.3625968097. The cubic root of 1231123014 is about 1071.7672527631.

Adding to 1231123014 its reverse (4103211321), we get a palindrome (5334334335).

The spelling of 1231123014 in words is "one billion, two hundred thirty-one million, one hundred twenty-three thousand, fourteen".