40421203021402 has 48 divisors (see below), whose sum is σ = 72189141134976. Its totient is φ = 16623787708800.

The previous prime is 40421203021399. The next prime is 40421203021439. The reversal of 40421203021402 is 20412030212404.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12642838 + ... + 15513985.

It is an arithmetic number, because the mean of its divisors is an integer number (1503940440312).

Almost surely, 2^{40421203021402} is an apocalyptic number.

40421203021402 is a deficient number, since it is larger than the sum of its proper divisors (31767938113574).

40421203021402 is a wasteful number, since it uses less digits than its factorization.

40421203021402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28156975 (or 28156934 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 40421203021402 its reverse (20412030212404), we get a palindrome (60833233233806).

The spelling of 40421203021402 in words is "forty trillion, four hundred twenty-one billion, two hundred three million, twenty-one thousand, four hundred two".