1101005298121 has 4 divisors (see below), whose sum is σ = 1102558197700. Its totient is φ = 1099452398544.

The previous prime is 1101005298077. The next prime is 1101005298131. The reversal of 1101005298121 is 1218925001011.

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

It can be written as a sum of positive squares in 2 ways, for example, as 42092266896 + 1058913031225 = 205164^2 + 1029035^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1101005298121 is a prime.

It is a super-2 number, since 2×1101005298121² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1101005298131) 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, 776448726 + ... + 776450143.

It is an arithmetic number, because the mean of its divisors is an integer number (275639549425).

Almost surely, 2^{1101005298121} is an apocalyptic number.

It is an amenable number.

1101005298121 is a deficient number, since it is larger than the sum of its proper divisors (1552899579).

1101005298121 is an equidigital number, since it uses as much as digits as its factorization.

1101005298121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1552899578.

The product of its (nonzero) digits is 1440, while the sum is 31.

The spelling of 1101005298121 in words is "one trillion, one hundred one billion, five million, two hundred ninety-eight thousand, one hundred twenty-one".