1020342403100 has 18 divisors (see below), whose sum is σ = 2214143014944. Its totient is φ = 408136961200.

The previous prime is 1020342403099. The next prime is 1020342403109. The reversal of 1020342403100 is 13042430201.

It is a super-2 number, since 2×1020342403100² (a number of 25 digits) contains 22 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020342403109) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5101711916 + ... + 5101712115.

Almost surely, 2^{1020342403100} is an apocalyptic number.

1020342403100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1020342403100 is an abundant number, since it is smaller than the sum of its proper divisors (1193800611844).

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

1020342403100 is a wasteful number, since it uses less digits than its factorization.

1020342403100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10203424045 (or 10203424038 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 1020342403100 its reverse (13042430201), we get a palindrome (1033384833301).

The spelling of 1020342403100 in words is "one trillion, twenty billion, three hundred forty-two million, four hundred three thousand, one hundred".