1273213437134 has 4 divisors (see below), whose sum is σ = 1909820155704. Its totient is φ = 636606718566.

The previous prime is 1273213436953. The next prime is 1273213437163. The reversal of 1273213437134 is 4317343123721.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 1273213437091 and 1273213437100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 318303359282 + ... + 318303359285.

It is an arithmetic number, because the mean of its divisors is an integer number (477455038926).

Almost surely, 2^{1273213437134} is an apocalyptic number.

1273213437134 is a deficient number, since it is larger than the sum of its proper divisors (636606718570).

1273213437134 is an equidigital number, since it uses as much as digits as its factorization.

1273213437134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 636606718569.

The product of its digits is 254016, while the sum is 41.

The spelling of 1273213437134 in words is "one trillion, two hundred seventy-three billion, two hundred thirteen million, four hundred thirty-seven thousand, one hundred thirty-four".