11013503131 has 2 divisors, whose sum is σ = 11013503132. Its totient is φ = 11013503130.

The previous prime is 11013503089. The next prime is 11013503201. The reversal of 11013503131 is 13130531011.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11013503131 - 2¹³ = 11013494939 is a prime.

It is a super-2 number, since 2×11013503131² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11013503099 and 11013503108.

It is not a weakly prime, because it can be changed into another prime (11013503231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5506751565 + 5506751566.

It is an arithmetic number, because the mean of its divisors is an integer number (5506751566).

Almost surely, 2^11013503131 is an apocalyptic number.

11013503131 is a deficient number, since it is larger than the sum of its proper divisors (1).

11013503131 is an equidigital number, since it uses as much as digits as its factorization.

11013503131 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 135, while the sum is 19.

The spelling of 11013503131 in words is "eleven billion, thirteen million, five hundred three thousand, one hundred thirty-one".