1201043433040 has 160 divisors (see below), whose sum is σ = 3058384500864. Its totient is φ = 435011512320.

The previous prime is 1201043433001. The next prime is 1201043433041. The reversal of 1201043433040 is 403343401021.

It is a junction number, because it is equal to n+sod(n) for n = 1201043432996 and 1201043433014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201043433041) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 288918642 + ... + 288922798.

Almost surely, 2^{1201043433040} is an apocalyptic number.

1201043433040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1201043433040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1529192250432).

1201043433040 is an abundant number, since it is smaller than the sum of its proper divisors (1857341067824).

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

1201043433040 is a wasteful number, since it uses less digits than its factorization.

1201043433040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5405 (or 5399 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 1201043433040 its reverse (403343401021), we get a palindrome (1604386834061).

The spelling of 1201043433040 in words is "one trillion, two hundred one billion, forty-three million, four hundred thirty-three thousand, forty".