229730251061 has 4 divisors (see below), whose sum is σ = 231960641952. Its totient is φ = 227499860172.

The previous prime is 229730251031. The next prime is 229730251081. The reversal of 229730251061 is 160152037922.

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-229730251061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (229730251021) 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, 1115195291 + ... + 1115195496.

It is an arithmetic number, because the mean of its divisors is an integer number (57990160488).

Almost surely, 2^229730251061 is an apocalyptic number.

It is an amenable number.

229730251061 is a deficient number, since it is larger than the sum of its proper divisors (2230390891).

229730251061 is a wasteful number, since it uses less digits than its factorization.

229730251061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2230390890.

The product of its (nonzero) digits is 45360, while the sum is 38.

Adding to 229730251061 its reverse (160152037922), we get a palindrome (389882288983).

The spelling of 229730251061 in words is "two hundred twenty-nine billion, seven hundred thirty million, two hundred fifty-one thousand, sixty-one".