1213027153761 has 8 divisors (see below), whose sum is σ = 1617915405600. Its totient is φ = 808411835552.

The previous prime is 1213027153693. The next prime is 1213027153763. The reversal of 1213027153761 is 1673517203121.

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

It is a cyclic number.

It is not a de Polignac number, because 1213027153761 - 2¹⁰ = 1213027152737 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1213027153763) 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, 68223036 + ... + 68240813.

It is an arithmetic number, because the mean of its divisors is an integer number (202239425700).

Almost surely, 2^{1213027153761} is an apocalyptic number.

It is an amenable number.

1213027153761 is a deficient number, since it is larger than the sum of its proper divisors (404888251839).

1213027153761 is a wasteful number, since it uses less digits than its factorization.

1213027153761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136466815.

The product of its (nonzero) digits is 52920, while the sum is 39.

The spelling of 1213027153761 in words is "one trillion, two hundred thirteen billion, twenty-seven million, one hundred fifty-three thousand, seven hundred sixty-one".