2102240431 has 8 divisors (see below), whose sum is σ = 2128723200. Its totient is φ = 2075821440.

The previous prime is 2102240429. The next prime is 2102240473. The reversal of 2102240431 is 1340422012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2102240431 - 2¹ = 2102240429 is a prime.

It is a super-2 number, since 2×2102240431² = 8838829659462131522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2102240399 and 2102240408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2102240531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52210 + ... + 83248.

It is an arithmetic number, because the mean of its divisors is an integer number (266090400).

Almost surely, 2^2102240431 is an apocalyptic number.

2102240431 is a deficient number, since it is larger than the sum of its proper divisors (26482769).

2102240431 is an equidigital number, since it uses as much as digits as its factorization.

2102240431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31889.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 2102240431 is about 45850.1955393867. The cubic root of 2102240431 is about 1281.0344077749.

Adding to 2102240431 its reverse (1340422012), we get a palindrome (3442662443).

The spelling of 2102240431 in words is "two billion, one hundred two million, two hundred forty thousand, four hundred thirty-one".