1021304155102 has 32 divisors (see below), whose sum is σ = 2022322671360. Its totient is φ = 374504196480.

The previous prime is 1021304155097. The next prime is 1021304155121. The reversal of 1021304155102 is 2015514031201.

It is a super-2 number, since 2×1021304155102² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 195051652 + ... + 195056887.

It is an arithmetic number, because the mean of its divisors is an integer number (63197583480).

Almost surely, 2^{1021304155102} is an apocalyptic number.

1021304155102 is a deficient number, since it is larger than the sum of its proper divisors (1001018516258).

1021304155102 is a wasteful number, since it uses less digits than its factorization.

1021304155102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 390108576.

The product of its (nonzero) digits is 1200, while the sum is 25.

Adding to 1021304155102 its reverse (2015514031201), we get a palindrome (3036818186303).

The spelling of 1021304155102 in words is "one trillion, twenty-one billion, three hundred four million, one hundred fifty-five thousand, one hundred two".