2123131030 has 16 divisors (see below), whose sum is σ = 3832592400. Its totient is φ = 846817632.

The previous prime is 2123131013. The next prime is 2123131039. The reversal of 2123131030 is 301313212.

It is a junction number, because it is equal to n+sod(n) for n = 2123130995 and 2123131013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2123131039) 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, 300684 + ... + 307663.

It is an arithmetic number, because the mean of its divisors is an integer number (239537025).

Almost surely, 2^2123131030 is an apocalyptic number.

2123131030 is a deficient number, since it is larger than the sum of its proper divisors (1709461370).

2123131030 is a wasteful number, since it uses less digits than its factorization.

2123131030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 608703.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 2123131030 is about 46077.4460012705. The cubic root of 2123131030 is about 1285.2637711939.

Adding to 2123131030 its reverse (301313212), we get a palindrome (2424444242).

The spelling of 2123131030 in words is "two billion, one hundred twenty-three million, one hundred thirty-one thousand, thirty".