1023440021254 has 24 divisors (see below), whose sum is σ = 1843404810048. Its totient is φ = 424468210320.

The previous prime is 1023440021249. The next prime is 1023440021269. The reversal of 1023440021254 is 4521200443201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 168436729 + ... + 168442804.

It is an arithmetic number, because the mean of its divisors is an integer number (76808533752).

Almost surely, 2^{1023440021254} is an apocalyptic number.

1023440021254 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1023440021254 is a deficient number, since it is larger than the sum of its proper divisors (819964788794).

1023440021254 is a wasteful number, since it uses less digits than its factorization.

1023440021254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336879580 (or 336879573 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 28.

Adding to 1023440021254 its reverse (4521200443201), we get a palindrome (5544640464455).

The spelling of 1023440021254 in words is "one trillion, twenty-three billion, four hundred forty million, twenty-one thousand, two hundred fifty-four".