2231423501 has 4 divisors (see below), whose sum is σ = 2232698172. Its totient is φ = 2230148832.

The previous prime is 2231423461. The next prime is 2231423507. The reversal of 2231423501 is 1053241322.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1163833225 + 1067590276 = 34115^2 + 32674^2 .

It is a cyclic number.

It is not a de Polignac number, because 2231423501 - 2¹⁰ = 2231422477 is a prime.

It is a super-3 number, since 3×2231423501³ (a number of 29 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2231423507) 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, 634706 + ... + 638211.

It is an arithmetic number, because the mean of its divisors is an integer number (558174543).

Almost surely, 2^2231423501 is an apocalyptic number.

It is an amenable number.

2231423501 is a deficient number, since it is larger than the sum of its proper divisors (1274671).

2231423501 is a wasteful number, since it uses less digits than its factorization.

2231423501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1274670.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 2231423501 is about 47237.9455628629. The cubic root of 2231423501 is about 1306.7544896705.

Adding to 2231423501 its reverse (1053241322), we get a palindrome (3284664823).

The spelling of 2231423501 in words is "two billion, two hundred thirty-one million, four hundred twenty-three thousand, five hundred one".