101234774234278 has 4 divisors (see below), whose sum is σ = 151852161351420. Its totient is φ = 50617387117138.

The previous prime is 101234774234239. The next prime is 101234774234317. The reversal of 101234774234278 is 872432477432101.

It is a happy number.

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

It is an interprime number because it is at equal distance from previous prime (101234774234239) and next prime (101234774234317).

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, 25308693558568 + ... + 25308693558571.

It is an arithmetic number, because the mean of its divisors is an integer number (37963040337855).

Almost surely, 2^{101234774234278} is an apocalyptic number.

101234774234278 is a deficient number, since it is larger than the sum of its proper divisors (50617387117142).

101234774234278 is an equidigital number, since it uses as much as digits as its factorization.

101234774234278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50617387117141.

The product of its (nonzero) digits is 12644352, while the sum is 55.

The spelling of 101234774234278 in words is "one hundred one trillion, two hundred thirty-four billion, seven hundred seventy-four million, two hundred thirty-four thousand, two hundred seventy-eight".