1331109430 has 32 divisors (see below), whose sum is σ = 2739806784. Its totient is φ = 456126336.

The previous prime is 1331109427. The next prime is 1331109431. The reversal of 1331109430 is 349011331.

It is a junction number, because it is equal to n+sod(n) for n = 1331109395 and 1331109404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1331109431) 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, 156364 + ... + 164656.

It is an arithmetic number, because the mean of its divisors is an integer number (85618962).

Almost surely, 2^1331109430 is an apocalyptic number.

1331109430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1331109430 is an abundant number, since it is smaller than the sum of its proper divisors (1408697354).

1331109430 is a wasteful number, since it uses less digits than its factorization.

1331109430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10600.

The product of its (nonzero) digits is 972, while the sum is 25.

The square root of 1331109430 is about 36484.3724079228. The cubic root of 1331109430 is about 1100.0301451794.

The spelling of 1331109430 in words is "one billion, three hundred thirty-one million, one hundred nine thousand, four hundred thirty".