103121310 has 32 divisors (see below), whose sum is σ = 253249920. Its totient is φ = 26859168.

The previous prime is 103121299. The next prime is 103121329. The reversal of 103121310 is 13121301.

It is a super-2 number, since 2×103121310² = 21268009152232200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38680 + ... + 41259.

It is an arithmetic number, because the mean of its divisors is an integer number (7914060).

Almost surely, 2^103121310 is an apocalyptic number.

103121310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

103121310 is an abundant number, since it is smaller than the sum of its proper divisors (150128610).

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

103121310 is a wasteful number, since it uses less digits than its factorization.

103121310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79992.

The product of its (nonzero) digits is 18, while the sum is 12.

The square root of 103121310 is about 10154.8663211290. The cubic root of 103121310 is about 468.9387705477.

Adding to 103121310 its reverse (13121301), we get a palindrome (116242611).

Subtracting from 103121310 its reverse (13121301), we obtain a palindrome (90000009).

The spelling of 103121310 in words is "one hundred three million, one hundred twenty-one thousand, three hundred ten".