1200312213102 has 24 divisors (see below), whose sum is σ = 2661157311384. Its totient is φ = 390799324944.

The previous prime is 1200312213101. The next prime is 1200312213103. The reversal of 1200312213102 is 2013122130021.

1200312213102 is a `hidden beast` number, since 1 + 20 + 0 + 312 + 21 + 310 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (1200312213101) and next prime (1200312213103).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200312213101) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 775394713 + ... + 775396260.

It is an arithmetic number, because the mean of its divisors is an integer number (110881554641).

Almost surely, 2^{1200312213102} is an apocalyptic number.

1200312213102 is an abundant number, since it is smaller than the sum of its proper divisors (1460845098282).

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

1200312213102 is a wasteful number, since it uses less digits than its factorization.

1200312213102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1550791024 (or 1550791021 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 1200312213102 its reverse (2013122130021), we get a palindrome (3213434343123).

The spelling of 1200312213102 in words is "one trillion, two hundred billion, three hundred twelve million, two hundred thirteen thousand, one hundred two".