1523225232231 has 4 divisors (see below), whose sum is σ = 2030966976312. Its totient is φ = 1015483488152.

The previous prime is 1523225232229. The next prime is 1523225232247. The reversal of 1523225232231 is 1322325223251.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1523225232231 - 2¹ = 1523225232229 is a prime.

It is a super-2 number, since 2×1523225232231² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1523225232192 and 1523225232201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1523225232731) 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, 253870872036 + ... + 253870872041.

It is an arithmetic number, because the mean of its divisors is an integer number (507741744078).

Almost surely, 2^{1523225232231} is an apocalyptic number.

1523225232231 is a deficient number, since it is larger than the sum of its proper divisors (507741744081).

1523225232231 is an equidigital number, since it uses as much as digits as its factorization.

1523225232231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 507741744080.

The product of its digits is 43200, while the sum is 33.

The spelling of 1523225232231 in words is "one trillion, five hundred twenty-three billion, two hundred twenty-five million, two hundred thirty-two thousand, two hundred thirty-one".