1231441134 has 64 divisors (see below), whose sum is σ = 3094198272. Its totient is φ = 317397600.

The previous prime is 1231441103. The next prime is 1231441139. The reversal of 1231441134 is 4311441321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1231441139) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 50349 + ... + 70695.

It is an arithmetic number, because the mean of its divisors is an integer number (48346848).

Almost surely, 2^1231441134 is an apocalyptic number.

1231441134 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1231441134, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1547099136).

1231441134 is an abundant number, since it is smaller than the sum of its proper divisors (1862757138).

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

1231441134 is a wasteful number, since it uses less digits than its factorization.

1231441134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20501.

The product of its digits is 1152, while the sum is 24.

The square root of 1231441134 is about 35091.8955600862. The cubic root of 1231441134 is about 1071.8595590644.

Adding to 1231441134 its reverse (4311441321), we get a palindrome (5542882455).

The spelling of 1231441134 in words is "one billion, two hundred thirty-one million, four hundred forty-one thousand, one hundred thirty-four".