1540512230111 has 2 divisors, whose sum is σ = 1540512230112. Its totient is φ = 1540512230110.

The previous prime is 1540512230071. The next prime is 1540512230221. The reversal of 1540512230111 is 1110322150451.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1540512230111 - 2¹⁴ = 1540512213727 is a prime.

It is a super-2 number, since 2×1540512230111² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1540512250111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 770256115055 + 770256115056.

It is an arithmetic number, because the mean of its divisors is an integer number (770256115056).

Almost surely, 2^{1540512230111} is an apocalyptic number.

1540512230111 is a deficient number, since it is larger than the sum of its proper divisors (1).

1540512230111 is an equidigital number, since it uses as much as digits as its factorization.

1540512230111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1200, while the sum is 26.

Adding to 1540512230111 its reverse (1110322150451), we get a palindrome (2650834380562).

The spelling of 1540512230111 in words is "one trillion, five hundred forty billion, five hundred twelve million, two hundred thirty thousand, one hundred eleven".