2403122261 has 16 divisors (see below), whose sum is σ = 2688681600. Its totient is φ = 2134499328.

The previous prime is 2403122233. The next prime is 2403122279. The reversal of 2403122261 is 1622213042.

It is a happy number.

It is not a de Polignac number, because 2403122261 - 2²⁶ = 2336013397 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2403122221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70805 + ... + 99093.

It is an arithmetic number, because the mean of its divisors is an integer number (168042600).

Almost surely, 2^2403122261 is an apocalyptic number.

It is an amenable number.

2403122261 is a deficient number, since it is larger than the sum of its proper divisors (285559339).

2403122261 is a wasteful number, since it uses less digits than its factorization.

2403122261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28588.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 2403122261 is about 49021.6509411913. The cubic root of 2403122261 is about 1339.4462442369.

The spelling of 2403122261 in words is "two billion, four hundred three million, one hundred twenty-two thousand, two hundred sixty-one".