1023231000040 has 32 divisors (see below), whose sum is σ = 2423441844000. Its totient is φ = 387750694464.

The previous prime is 1023231000037. The next prime is 1023231000061. The reversal of 1023231000040 is 400001323201.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1023230999978 and 1023231000023.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 673177530 + ... + 673179049.

It is an arithmetic number, because the mean of its divisors is an integer number (75732557625).

Almost surely, 2^{1023231000040} is an apocalyptic number.

1023231000040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1023231000040 is an abundant number, since it is smaller than the sum of its proper divisors (1400210843960).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1023231000040 is a wasteful number, since it uses less digits than its factorization.

1023231000040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1346356609 (or 1346356605 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 1023231000040 its reverse (400001323201), we get a palindrome (1423232323241).

The spelling of 1023231000040 in words is "one trillion, twenty-three billion, two hundred thirty-one million, forty", and thus it is an aban number.