23031313151225 has 24 divisors (see below), whose sum is σ = 29104510096152. Its totient is φ = 18073161100800.

The previous prime is 23031313151153. The next prime is 23031313151237. The reversal of 23031313151225 is 52215131313032.

It can be written as a sum of positive squares in 12 ways, for example, as 76328980729 + 22954984170496 = 276277^2 + 4791136^2 .

It is not a de Polignac number, because 23031313151225 - 2⁸ = 23031313150969 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23031313151191 and 23031313151200.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3606149 + ... + 7685501.

It is an arithmetic number, because the mean of its divisors is an integer number (1212687920673).

Almost surely, 2^{23031313151225} is an apocalyptic number.

23031313151225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

23031313151225 is a deficient number, since it is larger than the sum of its proper divisors (6073196944927).

23031313151225 is a wasteful number, since it uses less digits than its factorization.

23031313151225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4083677 (or 4083672 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 32.

Adding to 23031313151225 its reverse (52215131313032), we get a palindrome (75246444464257).

The spelling of 23031313151225 in words is "twenty-three trillion, thirty-one billion, three hundred thirteen million, one hundred fifty-one thousand, two hundred twenty-five".