1023131223000 has 1024 divisors, whose sum is σ = 3855181824000. Its totient is φ = 250387200000.

The previous prime is 1023131222959. The next prime is 1023131223011. The reversal of 1023131223000 is 3221313201.

1023131223000 is a `hidden beast` number, since 10 + 231 + 3 + 122 + 300 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 1480652655 + ... + 1480653345.

It is an arithmetic number, because the mean of its divisors is an integer number (3764826000).

Almost surely, 2^{1023131223000} is an apocalyptic number.

1023131223000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1023131223000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1927590912000).

1023131223000 is an abundant number, since it is smaller than the sum of its proper divisors (2832050601000).

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

1023131223000 is a wasteful number, since it uses less digits than its factorization.

1023131223000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 842 (or 822 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 1023131223000 its reverse (3221313201), we get a palindrome (1026352536201).

The spelling of 1023131223000 in words is "one trillion, twenty-three billion, one hundred thirty-one million, two hundred twenty-three thousand".