2102420403404 has 6 divisors (see below), whose sum is σ = 3679235705964. Its totient is φ = 1051210201700.

The previous prime is 2102420403383. The next prime is 2102420403409. The reversal of 2102420403404 is 4043040242012.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (2102420403409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 262802550422 + ... + 262802550429.

It is an arithmetic number, because the mean of its divisors is an integer number (613205950994).

Almost surely, 2^{2102420403404} is an apocalyptic number.

It is an amenable number.

2102420403404 is a deficient number, since it is larger than the sum of its proper divisors (1576815302560).

2102420403404 is a wasteful number, since it uses less digits than its factorization.

2102420403404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 525605100855 (or 525605100853 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 26.

Adding to 2102420403404 its reverse (4043040242012), we get a palindrome (6145460645416).

The spelling of 2102420403404 in words is "two trillion, one hundred two billion, four hundred twenty million, four hundred three thousand, four hundred four".