1013121432 has 48 divisors (see below), whose sum is σ = 2845500840. Its totient is φ = 337706496.

The previous prime is 1013121427. The next prime is 1013121449. The reversal of 1013121432 is 2341213101.

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

It is a zygodrome in base 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 258633 + ... + 262520.

Almost surely, 2^1013121432 is an apocalyptic number.

1013121432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1013121432 is an abundant number, since it is smaller than the sum of its proper divisors (1832379408).

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

1013121432 is an equidigital number, since it uses as much as digits as its factorization.

1013121432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 521174 (or 521158 counting only the distinct ones).

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

The square root of 1013121432 is about 31829.5685173393. The cubic root of 1013121432 is about 1004.3548186919.

Adding to 1013121432 its reverse (2341213101), we get a palindrome (3354334533).

The spelling of 1013121432 in words is "one billion, thirteen million, one hundred twenty-one thousand, four hundred thirty-two".