40242123011421 has 32 divisors (see below), whose sum is σ = 61914938117120. Its totient is φ = 25813066012272.

The previous prime is 40242123011407. The next prime is 40242123011429. The reversal of 40242123011421 is 12411032124204.

40242123011421 is a `hidden beast` number, since 4 + 0 + 2 + 4 + 2 + 1 + 230 + 1 + 1 + 421 = 666.

It is not a de Polignac number, because 40242123011421 - 2⁹ = 40242123010909 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40242123011429) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 258590905 + ... + 258746478.

It is an arithmetic number, because the mean of its divisors is an integer number (1934841816160).

Almost surely, 2^{40242123011421} is an apocalyptic number.

It is an amenable number.

40242123011421 is a deficient number, since it is larger than the sum of its proper divisors (21672815105699).

40242123011421 is a wasteful number, since it uses less digits than its factorization.

40242123011421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 517337502 (or 517337496 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

Adding to 40242123011421 its reverse (12411032124204), we get a palindrome (52653155135625).

The spelling of 40242123011421 in words is "forty trillion, two hundred forty-two billion, one hundred twenty-three million, eleven thousand, four hundred twenty-one".