102402001240 has 96 divisors (see below), whose sum is σ = 292387222800. Its totient is φ = 31917500160.

The previous prime is 102402001223. The next prime is 102402001291. The reversal of 102402001240 is 42100204201.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2353255 + ... + 2396374.

Almost surely, 2^102402001240 is an apocalyptic number.

102402001240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102402001240 is an abundant number, since it is smaller than the sum of its proper divisors (189985221560).

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

102402001240 is a wasteful number, since it uses less digits than its factorization.

102402001240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4749665 (or 4749654 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 102402001240 its reverse (42100204201), we get a palindrome (144502205441).

The spelling of 102402001240 in words is "one hundred two billion, four hundred two million, one thousand, two hundred forty".