310021142 has 32 divisors (see below), whose sum is σ = 496404480. Its totient is φ = 144970560.

The previous prime is 310021139. The next prime is 310021183. The reversal of 310021142 is 241120013.

It is a super-2 number, since 2×310021142² = 192226216973968328, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 274034 + ... + 275162.

It is an arithmetic number, because the mean of its divisors is an integer number (15512640).

Almost surely, 2^310021142 is an apocalyptic number.

310021142 is a deficient number, since it is larger than the sum of its proper divisors (186383338).

310021142 is a wasteful number, since it uses less digits than its factorization.

310021142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1308.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 310021142 is about 17607.4172438776. The cubic root of 310021142 is about 676.8053305524.

Adding to 310021142 its reverse (241120013), we get a palindrome (551141155).

It can be divided in two parts, 3100 and 21142, that added together give a palindrome (24242).

The spelling of 310021142 in words is "three hundred ten million, twenty-one thousand, one hundred forty-two".