1241545101631 has 4 divisors (see below), whose sum is σ = 1241999716264. Its totient is φ = 1241090487000.

The previous prime is 1241545101623. The next prime is 1241545101647. The reversal of 1241545101631 is 1361015451421.

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 1241545101631 - 2³ = 1241545101623 is a prime.

It is a super-2 number, since 2×1241545101631² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1241545101611) 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, 227303220 + ... + 227308681.

It is an arithmetic number, because the mean of its divisors is an integer number (310499929066).

Almost surely, 2^{1241545101631} is an apocalyptic number.

1241545101631 is a deficient number, since it is larger than the sum of its proper divisors (454614633).

1241545101631 is an equidigital number, since it uses as much as digits as its factorization.

1241545101631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 454614632.

The product of its (nonzero) digits is 14400, while the sum is 34.

The spelling of 1241545101631 in words is "one trillion, two hundred forty-one billion, five hundred forty-five million, one hundred one thousand, six hundred thirty-one".