1151217451051 has 4 divisors (see below), whose sum is σ = 1151221808752. Its totient is φ = 1151213093352.

The previous prime is 1151217451003. The next prime is 1151217451067. The reversal of 1151217451051 is 1501547121511.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1151217451051 - 2¹⁹ = 1151216926763 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1151217450998 and 1151217451016.

It is not an unprimeable number, because it can be changed into a prime (1151217421051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1755111 + ... + 2320096.

It is an arithmetic number, because the mean of its divisors is an integer number (287805452188).

Almost surely, 2^{1151217451051} is an apocalyptic number.

1151217451051 is a deficient number, since it is larger than the sum of its proper divisors (4357701).

1151217451051 is an equidigital number, since it uses as much as digits as its factorization.

1151217451051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4357700.

The product of its (nonzero) digits is 7000, while the sum is 34.

The spelling of 1151217451051 in words is "one trillion, one hundred fifty-one billion, two hundred seventeen million, four hundred fifty-one thousand, fifty-one".