1021652102102 has 16 divisors (see below), whose sum is σ = 1537186305024. Its totient is φ = 509256825000.

The previous prime is 1021652102101. The next prime is 1021652102131. The reversal of 1021652102102 is 2012012561201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021652102101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25050227 + ... + 25090977.

It is an arithmetic number, because the mean of its divisors is an integer number (96074144064).

Almost surely, 2^{1021652102102} is an apocalyptic number.

1021652102102 is a deficient number, since it is larger than the sum of its proper divisors (515534202922).

1021652102102 is a wasteful number, since it uses less digits than its factorization.

1021652102102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78955.

The product of its (nonzero) digits is 480, while the sum is 23.

Adding to 1021652102102 its reverse (2012012561201), we get a palindrome (3033664663303).

The spelling of 1021652102102 in words is "one trillion, twenty-one billion, six hundred fifty-two million, one hundred two thousand, one hundred two".