103240120340 has 24 divisors (see below), whose sum is σ = 247776289152. Its totient is φ = 35396612640.

The previous prime is 103240120337. The next prime is 103240120349. The reversal of 103240120340 is 43021042301.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103240120349) 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, 368714576 + ... + 368714855.

It is an arithmetic number, because the mean of its divisors is an integer number (10324012048).

Almost surely, 2^103240120340 is an apocalyptic number.

103240120340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

103240120340 is an abundant number, since it is smaller than the sum of its proper divisors (144536168812).

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

103240120340 is a wasteful number, since it uses less digits than its factorization.

103240120340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 737429447 (or 737429445 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 103240120340 its reverse (43021042301), we get a palindrome (146261162641).

The spelling of 103240120340 in words is "one hundred three billion, two hundred forty million, one hundred twenty thousand, three hundred forty".