1012321134 has 48 divisors (see below), whose sum is σ = 2533518000. Its totient is φ = 288718080.

The previous prime is 1012321133. The next prime is 1012321139. The reversal of 1012321134 is 4311232101.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012321133) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 147009 + ... + 153740.

It is an arithmetic number, because the mean of its divisors is an integer number (52781625).

Almost surely, 2^1012321134 is an apocalyptic number.

1012321134 is an abundant number, since it is smaller than the sum of its proper divisors (1521196866).

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

1012321134 is a wasteful number, since it uses less digits than its factorization.

1012321134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300785 (or 300782 counting only the distinct ones).

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

The square root of 1012321134 is about 31816.9944212209. The cubic root of 1012321134 is about 1004.0902913723.

Adding to 1012321134 its reverse (4311232101), we get a palindrome (5323553235).

The spelling of 1012321134 in words is "one billion, twelve million, three hundred twenty-one thousand, one hundred thirty-four".