561030700731 has 8 divisors (see below), whose sum is σ = 748888096320. Its totient is φ = 373596886152.

The previous prime is 561030700717. The next prime is 561030700753. The reversal of 561030700731 is 137007030165.

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

It is not a de Polignac number, because 561030700731 - 2²² = 561026506427 is a prime.

It is a super-2 number, since 2×561030700731² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 561030700692 and 561030700701.

It is not an unprimeable number, because it can be changed into a prime (561030708731) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 105892161 + ... + 105897458.

It is an arithmetic number, because the mean of its divisors is an integer number (93611012040).

Almost surely, 2^561030700731 is an apocalyptic number.

561030700731 is a deficient number, since it is larger than the sum of its proper divisors (187857395589).

561030700731 is a wasteful number, since it uses less digits than its factorization.

561030700731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211790505.

The product of its (nonzero) digits is 13230, while the sum is 33.

Adding to 561030700731 its reverse (137007030165), we get a palindrome (698037730896).

The spelling of 561030700731 in words is "five hundred sixty-one billion, thirty million, seven hundred thousand, seven hundred thirty-one".