103103131 has 4 divisors (see below), whose sum is σ = 103277592. Its totient is φ = 102928672.

The previous prime is 103103107. The next prime is 103103141. The reversal of 103103131 is 131301301.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 131301301 = 4073 ⋅32237.

It is a cyclic number.

It is not a de Polignac number, because 103103131 - 2¹⁷ = 102972059 is a prime.

It is a super-2 number, since 2×103103131² = 21260511244006322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (103103141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 86341 + ... + 87526.

It is an arithmetic number, because the mean of its divisors is an integer number (25819398).

Almost surely, 2^103103131 is an apocalyptic number.

103103131 is a deficient number, since it is larger than the sum of its proper divisors (174461).

103103131 is an equidigital number, since it uses as much as digits as its factorization.

103103131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174460.

The product of its (nonzero) digits is 27, while the sum is 13.

The square root of 103103131 is about 10153.9711935774. The cubic root of 103103131 is about 468.9112129106.

Adding to 103103131 its reverse (131301301), we get a palindrome (234404432).

The spelling of 103103131 in words is "one hundred three million, one hundred three thousand, one hundred thirty-one".