11561302140234 has 32 divisors (see below), whose sum is σ = 28828181961216. Its totient is φ = 3002935620720.

The previous prime is 11561302140203. The next prime is 11561302140239. The reversal of 11561302140234 is 43204120316511.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 11561302140195 and 11561302140204.

It is not an unprimeable number, because it can be changed into a prime (11561302140239) 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, 12512231292 + ... + 12512232215.

It is an arithmetic number, because the mean of its divisors is an integer number (900880686288).

Almost surely, 2^{11561302140234} is an apocalyptic number.

11561302140234 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

11561302140234 is an abundant number, since it is smaller than the sum of its proper divisors (17266879820982).

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

11561302140234 is a wasteful number, since it uses less digits than its factorization.

11561302140234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25024463530.

The product of its (nonzero) digits is 17280, while the sum is 33.

Adding to 11561302140234 its reverse (43204120316511), we get a palindrome (54765422456745).

The spelling of 11561302140234 in words is "eleven trillion, five hundred sixty-one billion, three hundred two million, one hundred forty thousand, two hundred thirty-four".