1021310320101 has 16 divisors (see below), whose sum is σ = 1442485483200. Its totient is φ = 640539664128.

The previous prime is 1021310320091. The next prime is 1021310320133. The reversal of 1021310320101 is 1010230131201.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-1021310320101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021310320301) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4297171 + ... + 4528608.

It is an arithmetic number, because the mean of its divisors is an integer number (90155342700).

Almost surely, 2^{1021310320101} is an apocalyptic number.

It is an amenable number.

1021310320101 is a deficient number, since it is larger than the sum of its proper divisors (421175163099).

1021310320101 is a wasteful number, since it uses less digits than its factorization.

1021310320101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8828068.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 1021310320101 its reverse (1010230131201), we get a palindrome (2031540451302).

The spelling of 1021310320101 in words is "one trillion, twenty-one billion, three hundred ten million, three hundred twenty thousand, one hundred one".