1230311102100 has 144 divisors (see below), whose sum is σ = 3967467940800. Its totient is φ = 292532152320.

The previous prime is 1230311102099. The next prime is 1230311102101. The reversal of 1230311102100 is 12011130321.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1230311102099) and next prime (1230311102101).

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 1230311102100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1230311102101) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6251455 + ... + 6445254.

It is an arithmetic number, because the mean of its divisors is an integer number (27551860700).

Almost surely, 2^{1230311102100} is an apocalyptic number.

1230311102100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1230311102100 is an abundant number, since it is smaller than the sum of its proper divisors (2737156838700).

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

1230311102100 is a wasteful number, since it uses less digits than its factorization.

1230311102100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12696762 (or 12696755 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 1230311102100 its reverse (12011130321), we get a palindrome (1242322232421).

The spelling of 1230311102100 in words is "one trillion, two hundred thirty billion, three hundred eleven million, one hundred two thousand, one hundred".