1361205624021 has 8 divisors (see below), whose sum is σ = 1816809981984. Its totient is φ = 906535841040.

The previous prime is 1361205624013. The next prime is 1361205624029. The reversal of 1361205624021 is 1204265021631.

It is an interprime number because it is at equal distance from previous prime (1361205624013) and next prime (1361205624029).

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

It is not a de Polignac number, because 1361205624021 - 2³ = 1361205624013 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1361205624029) 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, 233640346 + ... + 233646171.

It is an arithmetic number, because the mean of its divisors is an integer number (227101247748).

Almost surely, 2^{1361205624021} is an apocalyptic number.

It is an amenable number.

1361205624021 is a deficient number, since it is larger than the sum of its proper divisors (455604357963).

1361205624021 is an equidigital number, since it uses as much as digits as its factorization.

1361205624021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 467287491.

The product of its (nonzero) digits is 17280, while the sum is 33.

The spelling of 1361205624021 in words is "one trillion, three hundred sixty-one billion, two hundred five million, six hundred twenty-four thousand, twenty-one".