2123011004 has 48 divisors (see below), whose sum is σ = 3907008000. Its totient is φ = 1008086016.

The previous prime is 2123010997. The next prime is 2123011013. The reversal of 2123011004 is 4001103212.

It is a self number, because there is not a number n which added to its sum of digits gives 2123011004.

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, 1952549 + ... + 1953635.

It is an arithmetic number, because the mean of its divisors is an integer number (81396000).

Almost surely, 2^2123011004 is an apocalyptic number.

It is an amenable number.

2123011004 is a deficient number, since it is larger than the sum of its proper divisors (1783996996).

2123011004 is a wasteful number, since it uses less digits than its factorization.

2123011004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1382 (or 1380 counting only the distinct ones).

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

The square root of 2123011004 is about 46076.1435452231. The cubic root of 2123011004 is about 1285.2395509936.

Adding to 2123011004 its reverse (4001103212), we get a palindrome (6124114216).

It can be divided in two parts, 21230 and 11004, that multiplied together give a triangular number (233614920 = T₂₁₆₁₅).

The spelling of 2123011004 in words is "two billion, one hundred twenty-three million, eleven thousand, four".