102102401142477 has 24 divisors (see below), whose sum is σ = 149507875719488. Its totient is φ = 67132978977600.

The previous prime is 102102401142457. The next prime is 102102401142491. The reversal of 102102401142477 is 774241104201201.

102102401142477 is a `hidden beast` number, since 1 + 0 + 2 + 1 + 0 + 2 + 40 + 1 + 142 + 477 = 666.

It is not a de Polignac number, because 102102401142477 - 2⁸ = 102102401142221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102102401142457) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12269202 + ... + 18834492.

Almost surely, 2^{102102401142477} is an apocalyptic number.

It is an amenable number.

102102401142477 is a deficient number, since it is larger than the sum of its proper divisors (47405474577011).

102102401142477 is a wasteful number, since it uses less digits than its factorization.

102102401142477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6589041 (or 6589038 counting only the distinct ones).

The product of its (nonzero) digits is 25088, while the sum is 36.

Adding to 102102401142477 its reverse (774241104201201), we get a palindrome (876343505343678).

The spelling of 102102401142477 in words is "one hundred two trillion, one hundred two billion, four hundred one million, one hundred forty-two thousand, four hundred seventy-seven".