1102423401020 has 24 divisors (see below), whose sum is σ = 2315178574800. Its totient is φ = 440952325632.

The previous prime is 1102423401011. The next prime is 1102423401047. The reversal of 1102423401020 is 201043242011.

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

It is a junction number, because it is equal to n+sod(n) for n = 1102423400983 and 1102423401001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 527390 + ... + 1575749.

It is an arithmetic number, because the mean of its divisors is an integer number (96465773950).

Almost surely, 2^{1102423401020} is an apocalyptic number.

1102423401020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1102423401020 is an abundant number, since it is smaller than the sum of its proper divisors (1212755173780).

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

1102423401020 is a wasteful number, since it uses less digits than its factorization.

1102423401020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2129357 (or 2129355 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 1102423401020 its reverse (201043242011), we get a palindrome (1303466643031).

The spelling of 1102423401020 in words is "one trillion, one hundred two billion, four hundred twenty-three million, four hundred one thousand, twenty".