2231523061 has 2 divisors, whose sum is σ = 2231523062. Its totient is φ = 2231523060.

The previous prime is 2231523023. The next prime is 2231523067. The reversal of 2231523061 is 1603251322.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1849516036 + 382007025 = 43006^2 + 19545^2 .

It is a cyclic number.

It is not a de Polignac number, because 2231523061 - 2⁷ = 2231522933 is a prime.

It is a super-3 number, since 3×2231523061³ (a number of 29 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2231523067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1115761530 + 1115761531.

It is an arithmetic number, because the mean of its divisors is an integer number (1115761531).

Almost surely, 2^2231523061 is an apocalyptic number.

It is an amenable number.

2231523061 is a deficient number, since it is larger than the sum of its proper divisors (1).

2231523061 is an equidigital number, since it uses as much as digits as its factorization.

2231523061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 2231523061 is about 47238.9993649315. Note that the first 3 decimals coincide. The cubic root of 2231523061 is about 1306.7739239826.

Adding to 2231523061 its reverse (1603251322), we get a palindrome (3834774383).

The spelling of 2231523061 in words is "two billion, two hundred thirty-one million, five hundred twenty-three thousand, sixty-one".