1641420321102 has 32 divisors (see below), whose sum is σ = 3647723993760. Its totient is φ = 547121615040.

The previous prime is 1641420321067. The next prime is 1641420321113. The reversal of 1641420321102 is 2011230241461.

1641420321102 is a `hidden beast` number, since 1 + 641 + 4 + 2 + 0 + 3 + 2 + 1 + 10 + 2 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1148202 + ... + 2145042.

It is an arithmetic number, because the mean of its divisors is an integer number (113991374805).

Almost surely, 2^{1641420321102} is an apocalyptic number.

1641420321102 is an abundant number, since it is smaller than the sum of its proper divisors (2006303672658).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1641420321102 is a wasteful number, since it uses less digits than its factorization.

1641420321102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1027345 (or 1027339 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

Adding to 1641420321102 its reverse (2011230241461), we get a palindrome (3652650562563).

The spelling of 1641420321102 in words is "one trillion, six hundred forty-one billion, four hundred twenty million, three hundred twenty-one thousand, one hundred two".