1921124103 has 8 divisors (see below), whose sum is σ = 2574502128. Its totient is φ = 1274247744.

The previous prime is 1921124081. The next prime is 1921124113. The reversal of 1921124103 is 3014211291.

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

It is not a de Polignac number, because 1921124103 - 2²² = 1916929799 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1921124113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1624726 + ... + 1625907.

It is an arithmetic number, because the mean of its divisors is an integer number (321812766).

Almost surely, 2^1921124103 is an apocalyptic number.

1921124103 is a deficient number, since it is larger than the sum of its proper divisors (653378025).

1921124103 is a wasteful number, since it uses less digits than its factorization.

1921124103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3250833.

The product of its (nonzero) digits is 432, while the sum is 24.

The square root of 1921124103 is about 43830.6297353803. The cubic root of 1921124103 is about 1243.1355140447.

Adding to 1921124103 its reverse (3014211291), we get a palindrome (4935335394).

The spelling of 1921124103 in words is "one billion, nine hundred twenty-one million, one hundred twenty-four thousand, one hundred three".