1223070723278 has 16 divisors (see below), whose sum is σ = 1884698460960. Its totient is φ = 594846822816.

The previous prime is 1223070723263. The next prime is 1223070723293. The reversal of 1223070723278 is 8723270703221.

It is an interprime number because it is at equal distance from previous prime (1223070723263) and next prime (1223070723293).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1953626 + ... + 2502557.

It is an arithmetic number, because the mean of its divisors is an integer number (117793653810).

Almost surely, 2^{1223070723278} is an apocalyptic number.

1223070723278 is a deficient number, since it is larger than the sum of its proper divisors (661627737682).

1223070723278 is a wasteful number, since it uses less digits than its factorization.

1223070723278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4459931.

The product of its (nonzero) digits is 395136, while the sum is 44.

The spelling of 1223070723278 in words is "one trillion, two hundred twenty-three billion, seventy million, seven hundred twenty-three thousand, two hundred seventy-eight".