1201032023100 has 144 divisors (see below), whose sum is σ = 4276905927168. Its totient is φ = 253404552960.

The previous prime is 1201032023071. The next prime is 1201032023123. The reversal of 1201032023100 is 13202301021.

It is a super-2 number, since 2×1201032023100² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 1201032023100.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 21969624 + ... + 22024223.

Almost surely, 2^{1201032023100} is an apocalyptic number.

1201032023100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1201032023100 is an abundant number, since it is smaller than the sum of its proper divisors (3075873904068).

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

1201032023100 is a wasteful number, since it uses less digits than its factorization.

1201032023100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43993884 (or 43993877 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 1201032023100 its reverse (13202301021), we get a palindrome (1214234324121).

The spelling of 1201032023100 in words is "one trillion, two hundred one billion, thirty-two million, twenty-three thousand, one hundred".