1023311625 has 64 divisors (see below), whose sum is σ = 1953369600. Its totient is φ = 466041600.

The previous prime is 1023311623. The next prime is 1023311647. The reversal of 1023311625 is 5261133201.

It is not a de Polignac number, because 1023311625 - 2¹ = 1023311623 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1023311595 and 1023311604.

It is not an unprimeable number, because it can be changed into a prime (1023311623) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 915567 + ... + 916683.

It is an arithmetic number, because the mean of its divisors is an integer number (30521400).

Almost surely, 2^1023311625 is an apocalyptic number.

1023311625 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1023311625 is a deficient number, since it is larger than the sum of its proper divisors (930057975).

1023311625 is a wasteful number, since it uses less digits than its factorization.

1023311625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1491 (or 1481 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 1023311625 is about 31989.2423323842. The cubic root of 1023311625 is about 1007.7109303925.

Adding to 1023311625 its reverse (5261133201), we get a palindrome (6284444826).

The spelling of 1023311625 in words is "one billion, twenty-three million, three hundred eleven thousand, six hundred twenty-five".