1320155401213 has 16 divisors (see below), whose sum is σ = 1453490804736. Its totient is φ = 1189066011840.

The previous prime is 1320155401211. The next prime is 1320155401219. The reversal of 1320155401213 is 3121045510231.

It is a cyclic number.

It is not a de Polignac number, because 1320155401213 - 2¹ = 1320155401211 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1320155401211) 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, 379395 + ... + 1668607.

It is an arithmetic number, because the mean of its divisors is an integer number (90843175296).

Almost surely, 2^{1320155401213} is an apocalyptic number.

It is an amenable number.

1320155401213 is a deficient number, since it is larger than the sum of its proper divisors (133335403523).

1320155401213 is a wasteful number, since it uses less digits than its factorization.

1320155401213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1290084.

The product of its (nonzero) digits is 3600, while the sum is 28.

The spelling of 1320155401213 in words is "one trillion, three hundred twenty billion, one hundred fifty-five million, four hundred one thousand, two hundred thirteen".