2123460261 has 48 divisors (see below), whose sum is σ = 3382404480. Its totient is φ = 1275765120.

The previous prime is 2123460217. The next prime is 2123460299. The reversal of 2123460261 is 1620643212.

2123460261 is a `hidden beast` number, since 21 + 2 + 34 + 602 + 6 + 1 = 666.

It is not a de Polignac number, because 2123460261 - 2¹⁰ = 2123459237 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2123460161) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 887655 + ... + 890043.

It is an arithmetic number, because the mean of its divisors is an integer number (70466760).

Almost surely, 2^2123460261 is an apocalyptic number.

It is an amenable number.

2123460261 is a deficient number, since it is larger than the sum of its proper divisors (1258944219).

2123460261 is a wasteful number, since it uses less digits than its factorization.

2123460261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2586 (or 2583 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 2123460261 is about 46081.0184457766. The cubic root of 2123460261 is about 1285.3302024536.

The spelling of 2123460261 in words is "two billion, one hundred twenty-three million, four hundred sixty thousand, two hundred sixty-one".