40121431430 has 8 divisors (see below), whose sum is σ = 72218576592. Its totient is φ = 16048572568.

The previous prime is 40121431429. The next prime is 40121431463. The reversal of 40121431430 is 3413412104.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 40121431396 and 40121431405.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2006071562 + ... + 2006071581.

It is an arithmetic number, because the mean of its divisors is an integer number (9027322074).

Almost surely, 2^40121431430 is an apocalyptic number.

40121431430 is a deficient number, since it is larger than the sum of its proper divisors (32097145162).

40121431430 is a wasteful number, since it uses less digits than its factorization.

40121431430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4012143150.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 40121431430 its reverse (3413412104), we get a palindrome (43534843534).

The spelling of 40121431430 in words is "forty billion, one hundred twenty-one million, four hundred thirty-one thousand, four hundred thirty".