1154215023211 has 2 divisors, whose sum is σ = 1154215023212. Its totient is φ = 1154215023210.

The previous prime is 1154215023193. The next prime is 1154215023229. The reversal of 1154215023211 is 1123205124511.

It is a balanced prime because it is at equal distance from previous prime (1154215023193) and next prime (1154215023229).

It is an emirp because it is prime and its reverse (1123205124511) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1154215023211 - 2⁵ = 1154215023179 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1154215023211.

It is not a weakly prime, because it can be changed into another prime (1154275023211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 577107511605 + 577107511606.

It is an arithmetic number, because the mean of its divisors is an integer number (577107511606).

Almost surely, 2^{1154215023211} is an apocalyptic number.

1154215023211 is a deficient number, since it is larger than the sum of its proper divisors (1).

1154215023211 is an equidigital number, since it uses as much as digits as its factorization.

1154215023211 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2400, while the sum is 28.

The spelling of 1154215023211 in words is "one trillion, one hundred fifty-four billion, two hundred fifteen million, twenty-three thousand, two hundred eleven".