1040547100121 has 8 divisors (see below), whose sum is σ = 1052032661064. Its totient is φ = 1029101489920.

The previous prime is 1040547100091. The next prime is 1040547100127. The reversal of 1040547100121 is 1210017450401.

It can be written as a sum of positive squares in 4 ways, for example, as 45213643225 + 995333456896 = 212635^2 + 997664^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1040547100121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1040547100127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9935306 + ... + 10039491.

It is an arithmetic number, because the mean of its divisors is an integer number (131504082633).

Almost surely, 2^{1040547100121} is an apocalyptic number.

It is an amenable number.

1040547100121 is a deficient number, since it is larger than the sum of its proper divisors (11485560943).

1040547100121 is a wasteful number, since it uses less digits than its factorization.

1040547100121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19975371.

The product of its (nonzero) digits is 1120, while the sum is 26.

The spelling of 1040547100121 in words is "one trillion, forty billion, five hundred forty-seven million, one hundred thousand, one hundred twenty-one".