103144072531 has 2 divisors, whose sum is σ = 103144072532. Its totient is φ = 103144072530.

The previous prime is 103144072529. The next prime is 103144072583. The reversal of 103144072531 is 135270441301.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 103144072531 - 2¹ = 103144072529 is a prime.

It is a super-2 number, since 2×103144072531² (a number of 23 digits) contains 22 as substring.

Together with 103144072529, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 103144072493 and 103144072502.

It is not a weakly prime, because it can be changed into another prime (103144072231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51572036265 + 51572036266.

It is an arithmetic number, because the mean of its divisors is an integer number (51572036266).

Almost surely, 2^103144072531 is an apocalyptic number.

103144072531 is a deficient number, since it is larger than the sum of its proper divisors (1).

103144072531 is an equidigital number, since it uses as much as digits as its factorization.

103144072531 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10080, while the sum is 31.

The spelling of 103144072531 in words is "one hundred three billion, one hundred forty-four million, seventy-two thousand, five hundred thirty-one".