103421511 has 24 divisors (see below), whose sum is σ = 156742560. Its totient is φ = 65620800.

The previous prime is 103421449. The next prime is 103421519. The reversal of 103421511 is 115124301.

It is not a de Polignac number, because 103421511 - 2⁶ = 103421447 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103421519) 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, 15741 + ... + 21321.

It is an arithmetic number, because the mean of its divisors is an integer number (6530940).

Almost surely, 2^103421511 is an apocalyptic number.

103421511 is a deficient number, since it is larger than the sum of its proper divisors (53321049).

103421511 is a wasteful number, since it uses less digits than its factorization.

103421511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5687 (or 5684 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 103421511 is about 10169.6367191754. The cubic root of 103421511 is about 469.3933791443.

Adding to 103421511 its reverse (115124301), we get a palindrome (218545812).

The spelling of 103421511 in words is "one hundred three million, four hundred twenty-one thousand, five hundred eleven".