1231020874 has 8 divisors (see below), whose sum is σ = 1848683520. Its totient is φ = 614793036.

The previous prime is 1231020871. The next prime is 1231020883. The reversal of 1231020874 is 4780201321.

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

It is not an unprimeable number, because it can be changed into a prime (1231020871) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 356554 + ... + 359989.

It is an arithmetic number, because the mean of its divisors is an integer number (231085440).

Almost surely, 2^1231020874 is an apocalyptic number.

1231020874 is a deficient number, since it is larger than the sum of its proper divisors (617662646).

1231020874 is an equidigital number, since it uses as much as digits as its factorization.

1231020874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 717404.

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 1231020874 is about 35085.9070568227. The cubic root of 1231020874 is about 1071.7376122550.

The spelling of 1231020874 in words is "one billion, two hundred thirty-one million, twenty thousand, eight hundred seventy-four".