2131210004 has 48 divisors (see below), whose sum is σ = 4678550016. Its totient is φ = 825228000.

The previous prime is 2131209973. The next prime is 2131210013. The reversal of 2131210004 is 4000121312.

It is a super-2 number, since 2×2131210004² = 9084112162299360032, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28979 + ... + 71429.

It is an arithmetic number, because the mean of its divisors is an integer number (97469792).

Almost surely, 2^2131210004 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2131210004, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2339275008).

2131210004 is an abundant number, since it is smaller than the sum of its proper divisors (2547340012).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2131210004 is a wasteful number, since it uses less digits than its factorization.

2131210004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42636 (or 42634 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 2131210004 is about 46165.0300985497. The cubic root of 2131210004 is about 1286.8919435463.

Adding to 2131210004 its reverse (4000121312), we get a palindrome (6131331316).

The spelling of 2131210004 in words is "two billion, one hundred thirty-one million, two hundred ten thousand, four".