103202121 has 32 divisors (see below), whose sum is σ = 161243136. Its totient is φ = 58016000.

The previous prime is 103202111. The next prime is 103202123. The reversal of 103202121 is 121202301.

It is a cyclic number.

It is not a de Polignac number, because 103202121 - 2⁷ = 103201993 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 103202097 and 103202106.

It is not an unprimeable number, because it can be changed into a prime (103202123) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 38536 + ... + 41126.

It is an arithmetic number, because the mean of its divisors is an integer number (5038848).

Almost surely, 2^103202121 is an apocalyptic number.

103202121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

103202121 is a deficient number, since it is larger than the sum of its proper divisors (58041015).

103202121 is a wasteful number, since it uses less digits than its factorization.

103202121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2693.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 103202121 is about 10158.8444716907. The cubic root of 103202121 is about 469.0612331644.

Adding to 103202121 its reverse (121202301), we get a palindrome (224404422).

The spelling of 103202121 in words is "one hundred three million, two hundred two thousand, one hundred twenty-one".