102140140040 has 16 divisors (see below), whose sum is σ = 229815315180. Its totient is φ = 40856056000.

The previous prime is 102140140033. The next prime is 102140140097. The reversal of 102140140040 is 40041041201.

It can be written as a sum of positive squares in 2 ways, for example, as 101672975044 + 467164996 = 318862^2 + 21614^2 .

It is a super-2 number, since 2×102140140040² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1276751711 + ... + 1276751790.

Almost surely, 2^102140140040 is an apocalyptic number.

102140140040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102140140040 is an abundant number, since it is smaller than the sum of its proper divisors (127675175140).

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

102140140040 is a wasteful number, since it uses less digits than its factorization.

102140140040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2553503512 (or 2553503508 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 102140140040 its reverse (40041041201), we get a palindrome (142181181241).

The spelling of 102140140040 in words is "one hundred two billion, one hundred forty million, one hundred forty thousand, forty".