1213401361026 has 32 divisors (see below), whose sum is σ = 2432789150400. Its totient is φ = 403469559360.

The previous prime is 1213401361001. The next prime is 1213401361043. The reversal of 1213401361026 is 6201631043121.

It is a junction number, because it is equal to n+sod(n) for n = 1213401360984 and 1213401361002.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53992120 + ... + 54014588.

It is an arithmetic number, because the mean of its divisors is an integer number (76024660950).

Almost surely, 2^{1213401361026} is an apocalyptic number.

1213401361026 is an abundant number, since it is smaller than the sum of its proper divisors (1219387789374).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1213401361026 is a wasteful number, since it uses less digits than its factorization.

1213401361026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44274.

The product of its (nonzero) digits is 5184, while the sum is 30.

The spelling of 1213401361026 in words is "one trillion, two hundred thirteen billion, four hundred one million, three hundred sixty-one thousand, twenty-six".