623061132261 has 4 divisors (see below), whose sum is σ = 830748176352. Its totient is φ = 415374088172.

The previous prime is 623061132247. The next prime is 623061132361. The reversal of 623061132261 is 162231160326.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-623061132261 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (623061132361) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 103843522041 + ... + 103843522046.

It is an arithmetic number, because the mean of its divisors is an integer number (207687044088).

Almost surely, 2^623061132261 is an apocalyptic number.

It is an amenable number.

623061132261 is a deficient number, since it is larger than the sum of its proper divisors (207687044091).

623061132261 is a wasteful number, since it uses less digits than its factorization.

623061132261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207687044090.

The product of its (nonzero) digits is 15552, while the sum is 33.

Adding to 623061132261 its reverse (162231160326), we get a palindrome (785292292587).

The spelling of 623061132261 in words is "six hundred twenty-three billion, sixty-one million, one hundred thirty-two thousand, two hundred sixty-one".