1213051533142 has 16 divisors (see below), whose sum is σ = 1842651993600. Its totient is φ = 598834552680.

The previous prime is 1213051533139. The next prime is 1213051533151. The reversal of 1213051533142 is 2413351503121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13482967 + ... + 13572637.

It is an arithmetic number, because the mean of its divisors is an integer number (115165749600).

Almost surely, 2^{1213051533142} is an apocalyptic number.

1213051533142 is a deficient number, since it is larger than the sum of its proper divisors (629600460458).

1213051533142 is an equidigital number, since it uses as much as digits as its factorization.

1213051533142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175371.

The product of its (nonzero) digits is 10800, while the sum is 31.

The spelling of 1213051533142 in words is "one trillion, two hundred thirteen billion, fifty-one million, five hundred thirty-three thousand, one hundred forty-two".