2261023340142 has 64 divisors (see below), whose sum is σ = 5220553089024. Its totient is φ = 639449791200.

The previous prime is 2261023340131. The next prime is 2261023340179. The reversal of 2261023340142 is 2410433201622.

It is a super-2 number, since 2×2261023340142² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9691767 + ... + 9922317.

It is an arithmetic number, because the mean of its divisors is an integer number (81571142016).

Almost surely, 2^{2261023340142} is an apocalyptic number.

2261023340142 is an abundant number, since it is smaller than the sum of its proper divisors (2959529748882).

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

2261023340142 is a wasteful number, since it uses less digits than its factorization.

2261023340142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232933.

The product of its (nonzero) digits is 13824, while the sum is 30.

Adding to 2261023340142 its reverse (2410433201622), we get a palindrome (4671456541764).

The spelling of 2261023340142 in words is "two trillion, two hundred sixty-one billion, twenty-three million, three hundred forty thousand, one hundred forty-two".