3123421131 has 8 divisors (see below), whose sum is σ = 4204994560. Its totient is φ = 2062064232.

The previous prime is 3123421129. The next prime is 3123421163. The reversal of 3123421131 is 1311243213.

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

It is not a de Polignac number, because 3123421131 - 2¹ = 3123421129 is a prime.

It is a super-2 number, since 2×3123421131² = 19511519123154638322, 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 = 3123421098 and 3123421107.

It is not an unprimeable number, because it can be changed into a prime (3123421121) 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, 5053771 + ... + 5054388.

It is an arithmetic number, because the mean of its divisors is an integer number (525624320).

Almost surely, 2^3123421131 is an apocalyptic number.

3123421131 is a deficient number, since it is larger than the sum of its proper divisors (1081573429).

3123421131 is a wasteful number, since it uses less digits than its factorization.

3123421131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10108265.

The product of its digits is 432, while the sum is 21.

The square root of 3123421131 is about 55887.5758196757. The cubic root of 3123421131 is about 1461.7626067767.

Adding to 3123421131 its reverse (1311243213), we get a palindrome (4434664344).

The spelling of 3123421131 in words is "three billion, one hundred twenty-three million, four hundred twenty-one thousand, one hundred thirty-one".