261003312422 has 8 divisors (see below), whose sum is σ = 391513134936. Its totient is φ = 130498934112.

The previous prime is 261003312413. The next prime is 261003312439. The reversal of 261003312422 is 224213300162.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×261003312422² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 261003312391 and 261003312400.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1239008 + ... + 1434275.

It is an arithmetic number, because the mean of its divisors is an integer number (48939141867).

Almost surely, 2^261003312422 is an apocalyptic number.

261003312422 is a deficient number, since it is larger than the sum of its proper divisors (130509822514).

261003312422 is a wasteful number, since it uses less digits than its factorization.

261003312422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2722102.

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 261003312422 its reverse (224213300162), we get a palindrome (485216612584).

The spelling of 261003312422 in words is "two hundred sixty-one billion, three million, three hundred twelve thousand, four hundred twenty-two".