1201406989152 has 24 divisors (see below), whose sum is σ = 3153693346776. Its totient is φ = 400468996352.

The previous prime is 1201406989141. The next prime is 1201406989217. The reversal of 1201406989152 is 2519896041021.

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-3 number, since 3×1201406989152³ (a number of 37 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6257327973 + ... + 6257328164.

It is an arithmetic number, because the mean of its divisors is an integer number (131403889449).

Almost surely, 2^{1201406989152} is an apocalyptic number.

1201406989152 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1201406989152 is an abundant number, since it is smaller than the sum of its proper divisors (1952286357624).

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

1201406989152 is a wasteful number, since it uses less digits than its factorization.

1201406989152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12514656150 (or 12514656142 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 48.

The spelling of 1201406989152 in words is "one trillion, two hundred one billion, four hundred six million, nine hundred eighty-nine thousand, one hundred fifty-two".