102151340040 has 32 divisors (see below), whose sum is σ = 306454020480. Its totient is φ = 27240357312.

The previous prime is 102151340033. The next prime is 102151340041. The reversal of 102151340040 is 40043151201.

It is a junction number, because it is equal to n+sod(n) for n = 102151339989 and 102151340016.

It is not an unprimeable number, because it can be changed into a prime (102151340041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 425630464 + ... + 425630703.

It is an arithmetic number, because the mean of its divisors is an integer number (9576688140).

Almost surely, 2^102151340040 is an apocalyptic number.

102151340040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102151340040 is an abundant number, since it is smaller than the sum of its proper divisors (204302680440).

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

102151340040 is a wasteful number, since it uses less digits than its factorization.

102151340040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 851261181 (or 851261177 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

Adding to 102151340040 its reverse (40043151201), we get a palindrome (142194491241).

The spelling of 102151340040 in words is "one hundred two billion, one hundred fifty-one million, three hundred forty thousand, forty".