103021011 has 16 divisors (see below), whose sum is σ = 154465920. Its totient is φ = 67851720.

The previous prime is 103021001. The next prime is 103021013. The reversal of 103021011 is 110120301.

It is not a de Polignac number, because 103021011 - 2⁶ = 103020947 is a prime.

It is a super-2 number, since 2×103021011² = 21226657414924242, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 103020984 and 103021002.

It is not an unprimeable number, because it can be changed into a prime (103021013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20745 + ... + 25226.

It is an arithmetic number, because the mean of its divisors is an integer number (9654120).

Almost surely, 2^103021011 is an apocalyptic number.

103021011 is a deficient number, since it is larger than the sum of its proper divisors (51444909).

103021011 is an equidigital number, since it uses as much as digits as its factorization.

103021011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46063 (or 46057 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 9.

The square root of 103021011 is about 10149.9266499813. The cubic root of 103021011 is about 468.7866864087.

Adding to 103021011 its reverse (110120301), we get a palindrome (213141312).

The spelling of 103021011 in words is "one hundred three million, twenty-one thousand, eleven".