111060061531 has 2 divisors, whose sum is σ = 111060061532. Its totient is φ = 111060061530.

The previous prime is 111060061529. The next prime is 111060061621. The reversal of 111060061531 is 135160060111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 111060061531 - 2¹ = 111060061529 is a prime.

It is a super-2 number, since 2×111060061531² (a number of 23 digits) contains 22 as substring.

Together with 111060061529, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 111060061496 and 111060061505.

It is not a weakly prime, because it can be changed into another prime (111060061331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55530030765 + 55530030766.

It is an arithmetic number, because the mean of its divisors is an integer number (55530030766).

Almost surely, 2^111060061531 is an apocalyptic number.

111060061531 is a deficient number, since it is larger than the sum of its proper divisors (1).

111060061531 is an equidigital number, since it uses as much as digits as its factorization.

111060061531 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 540, while the sum is 25.

The spelling of 111060061531 in words is "one hundred eleven billion, sixty million, sixty-one thousand, five hundred thirty-one".