1083421731 has 16 divisors (see below), whose sum is σ = 1674183168. Its totient is φ = 610377600.

The previous prime is 1083421687. The next prime is 1083421771. The reversal of 1083421731 is 1371243801.

It is not a de Polignac number, because 1083421731 - 2²⁹ = 546550819 is a prime.

It is a super-2 number, since 2×1083421731² = 2347605294406072722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1083421771) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 361830 + ... + 364811.

It is an arithmetic number, because the mean of its divisors is an integer number (104636448).

Almost surely, 2^1083421731 is an apocalyptic number.

1083421731 is a deficient number, since it is larger than the sum of its proper divisors (590761437).

1083421731 is an equidigital number, since it uses as much as digits as its factorization.

1083421731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 726722.

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 1083421731 is about 32915.3722597816. The cubic root of 1083421731 is about 1027.0679586164.

The spelling of 1083421731 in words is "one billion, eighty-three million, four hundred twenty-one thousand, seven hundred thirty-one".