1101959467921 has 16 divisors (see below), whose sum is σ = 1203184044160. Its totient is φ = 1003090780800.

The previous prime is 1101959467909. The next prime is 1101959467963. The reversal of 1101959467921 is 1297649591011.

It is not a de Polignac number, because 1101959467921 - 2³⁷ = 964520514449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1101959467621) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5742910 + ... + 5931688.

It is an arithmetic number, because the mean of its divisors is an integer number (75199002760).

Almost surely, 2^{1101959467921} is an apocalyptic number.

It is an amenable number.

1101959467921 is a deficient number, since it is larger than the sum of its proper divisors (101224576239).

1101959467921 is a wasteful number, since it uses less digits than its factorization.

1101959467921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195016.

The product of its (nonzero) digits is 1224720, while the sum is 55.

The spelling of 1101959467921 in words is "one trillion, one hundred one billion, nine hundred fifty-nine million, four hundred sixty-seven thousand, nine hundred twenty-one".