103451513020 has 72 divisors (see below), whose sum is σ = 226618814016. Its totient is φ = 39654905472.

The previous prime is 103451513003. The next prime is 103451513027. The reversal of 103451513020 is 20315154301.

It is a happy number.

It is a super-2 number, since 2×103451513020² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103451513027) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1933549 + ... + 1986331.

It is an arithmetic number, because the mean of its divisors is an integer number (3147483528).

Almost surely, 2^103451513020 is an apocalyptic number.

103451513020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 103451513020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (113309407008).

103451513020 is an abundant number, since it is smaller than the sum of its proper divisors (123167300996).

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

103451513020 is a wasteful number, since it uses less digits than its factorization.

103451513020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52931 (or 52886 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 25.

Adding to 103451513020 its reverse (20315154301), we get a palindrome (123766667321).

The spelling of 103451513020 in words is "one hundred three billion, four hundred fifty-one million, five hundred thirteen thousand, twenty".