1331023134 has 32 divisors (see below), whose sum is σ = 3064239360. Its totient is φ = 377554752.

The previous prime is 1331023117. The next prime is 1331023151. The reversal of 1331023134 is 4313201331.

It is an interprime number because it is at equal distance from previous prime (1331023117) and next prime (1331023151).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 1331023134.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 108159 + ... + 119834.

It is an arithmetic number, because the mean of its divisors is an integer number (95757480).

Almost surely, 2^1331023134 is an apocalyptic number.

1331023134 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1331023134 is an abundant number, since it is smaller than the sum of its proper divisors (1733216226).

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

1331023134 is a wasteful number, since it uses less digits than its factorization.

1331023134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228144.

The product of its (nonzero) digits is 648, while the sum is 21.

The square root of 1331023134 is about 36483.1897454156. The cubic root of 1331023134 is about 1100.0063729658.

Adding to 1331023134 its reverse (4313201331), we get a palindrome (5644224465).

The spelling of 1331023134 in words is "one billion, three hundred thirty-one million, twenty-three thousand, one hundred thirty-four".