2123720470 has 16 divisors (see below), whose sum is σ = 3823238880. Its totient is φ = 849367744.

The previous prime is 2123720449. The next prime is 2123720483. The reversal of 2123720470 is 740273212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 103311 + ... + 122149.

It is an arithmetic number, because the mean of its divisors is an integer number (238952430).

Almost surely, 2^2123720470 is an apocalyptic number.

2123720470 is a deficient number, since it is larger than the sum of its proper divisors (1699518410).

2123720470 is a wasteful number, since it uses less digits than its factorization.

2123720470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30119.

The product of its (nonzero) digits is 4704, while the sum is 28.

The square root of 2123720470 is about 46083.8417452365. The cubic root of 2123720470 is about 1285.3827017998.

Adding to 2123720470 its reverse (740273212), we get a palindrome (2863993682).

The spelling of 2123720470 in words is "two billion, one hundred twenty-three million, seven hundred twenty thousand, four hundred seventy".