1021153411100 has 36 divisors (see below), whose sum is σ = 2215955659344. Its totient is φ = 408451639680.

The previous prime is 1021153411099. The next prime is 1021153411141. The reversal of 1021153411100 is 11143511201.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5304737 + ... + 5493863.

Almost surely, 2^{1021153411100} is an apocalyptic number.

1021153411100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1021153411100 is an abundant number, since it is smaller than the sum of its proper divisors (1194802248244).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1021153411100 is a wasteful number, since it uses less digits than its factorization.

1021153411100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243134 (or 243127 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 20.

Adding to 1021153411100 its reverse (11143511201), we get a palindrome (1032296922301).

The spelling of 1021153411100 in words is "one trillion, twenty-one billion, one hundred fifty-three million, four hundred eleven thousand, one hundred".