102420003144511 has 4 divisors (see below), whose sum is σ = 110298464924872. Its totient is φ = 94541541364152.

The previous prime is 102420003144509. The next prime is 102420003144523. The reversal of 102420003144511 is 115441300024201.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 102420003144511 - 2¹ = 102420003144509 is a prime.

It is a super-3 number, since 3×102420003144511³ (a number of 43 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 102420003144511.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102420003144551) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3939230890161 + ... + 3939230890186.

It is an arithmetic number, because the mean of its divisors is an integer number (27574616231218).

Almost surely, 2^{102420003144511} is an apocalyptic number.

102420003144511 is a deficient number, since it is larger than the sum of its proper divisors (7878461780361).

102420003144511 is an equidigital number, since it uses as much as digits as its factorization.

102420003144511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7878461780360.

The product of its (nonzero) digits is 3840, while the sum is 28.

Adding to 102420003144511 its reverse (115441300024201), we get a palindrome (217861303168712).

The spelling of 102420003144511 in words is "one hundred two trillion, four hundred twenty billion, three million, one hundred forty-four thousand, five hundred eleven".