103121907240 has 64 divisors (see below), whose sum is σ = 337489882560. Its totient is φ = 24999249920.

The previous prime is 103121907233. The next prime is 103121907263. The reversal of 103121907240 is 42709121301.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 103121907198 and 103121907207.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39060009 + ... + 39062648.

It is an arithmetic number, because the mean of its divisors is an integer number (5273279415).

Almost surely, 2^103121907240 is an apocalyptic number.

103121907240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

103121907240 is an abundant number, since it is smaller than the sum of its proper divisors (234367975320).

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

103121907240 is a wasteful number, since it uses less digits than its factorization.

103121907240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78122682 (or 78122678 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 30.

The spelling of 103121907240 in words is "one hundred three billion, one hundred twenty-one million, nine hundred seven thousand, two hundred forty".