2123110140 has 24 divisors (see below), whose sum is σ = 5944708560. Its totient is φ = 566162688.

The previous prime is 2123110123. The next prime is 2123110147. The reversal of 2123110140 is 410113212.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2123110147) 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, 17692525 + ... + 17692644.

It is an arithmetic number, because the mean of its divisors is an integer number (247696190).

Almost surely, 2^2123110140 is an apocalyptic number.

2123110140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2123110140 is an abundant number, since it is smaller than the sum of its proper divisors (3821598420).

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

2123110140 is a wasteful number, since it uses less digits than its factorization.

2123110140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35385181 (or 35385179 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 2123110140 is about 46077.2193171420. The cubic root of 2123110140 is about 1285.2595558397.

Adding to 2123110140 its reverse (410113212), we get a palindrome (2533223352).

The spelling of 2123110140 in words is "two billion, one hundred twenty-three million, one hundred ten thousand, one hundred forty".