1010123978 has 8 divisors (see below), whose sum is σ = 1516798980. Its totient is φ = 504524320.

The previous prime is 1010123963. The next prime is 1010123993. The reversal of 1010123978 is 8793210101.

It is an interprime number because it is at equal distance from previous prime (1010123963) and next prime (1010123993).

It can be written as a sum of positive squares in 2 ways, for example, as 1006348729 + 3775249 = 31723^2 + 1943^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 266483 + ... + 270246.

Almost surely, 2^1010123978 is an apocalyptic number.

1010123978 is a deficient number, since it is larger than the sum of its proper divisors (506675002).

1010123978 is an equidigital number, since it uses as much as digits as its factorization.

1010123978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 537672.

The product of its (nonzero) digits is 3024, while the sum is 32.

The square root of 1010123978 is about 31782.4476401677. The cubic root of 1010123978 is about 1003.3633346315.

It can be divided in two parts, 1010123 and 978, that added together give a palindrome (1011101).

The spelling of 1010123978 in words is "one billion, ten million, one hundred twenty-three thousand, nine hundred seventy-eight".