1021311416 has 8 divisors (see below), whose sum is σ = 1914958920. Its totient is φ = 510655704.

The previous prime is 1021311413. The next prime is 1021311419. The reversal of 1021311416 is 6141131201.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1021311413) and next prime (1021311419).

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021311413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63831956 + ... + 63831971.

It is an arithmetic number, because the mean of its divisors is an integer number (239369865).

Almost surely, 2^1021311416 is an apocalyptic number.

It is an amenable number.

1021311416 is a deficient number, since it is larger than the sum of its proper divisors (893647504).

1021311416 is a wasteful number, since it uses less digits than its factorization.

1021311416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127663933 (or 127663929 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 20.

The square root of 1021311416 is about 31957.9632642633. The cubic root of 1021311416 is about 1007.0539304029.

Adding to 1021311416 its reverse (6141131201), we get a palindrome (7162442617).

The spelling of 1021311416 in words is "one billion, twenty-one million, three hundred eleven thousand, four hundred sixteen".