1023154213111 has 2 divisors, whose sum is σ = 1023154213112. Its totient is φ = 1023154213110.

The previous prime is 1023154213057. The next prime is 1023154213139. The reversal of 1023154213111 is 1113124513201.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1023154213111 - 2¹¹ = 1023154211063 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1023154213171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 511577106555 + 511577106556.

It is an arithmetic number, because the mean of its divisors is an integer number (511577106556).

Almost surely, 2^{1023154213111} is an apocalyptic number.

1023154213111 is a deficient number, since it is larger than the sum of its proper divisors (1).

1023154213111 is an equidigital number, since it uses as much as digits as its factorization.

1023154213111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 720, while the sum is 25.

Adding to 1023154213111 its reverse (1113124513201), we get a palindrome (2136278726312).

The spelling of 1023154213111 in words is "one trillion, twenty-three billion, one hundred fifty-four million, two hundred thirteen thousand, one hundred eleven".