1203400211541 has 32 divisors (see below), whose sum is σ = 1844604748800. Its totient is φ = 690168199680.

The previous prime is 1203400211501. The next prime is 1203400211549. The reversal of 1203400211541 is 1451120043021.

It is not a de Polignac number, because 1203400211541 - 2¹⁰ = 1203400210517 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1203400211549) 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, 525756 + ... + 1638053.

It is an arithmetic number, because the mean of its divisors is an integer number (57643898400).

Almost surely, 2^{1203400211541} is an apocalyptic number.

1203400211541 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1203400211541 is a deficient number, since it is larger than the sum of its proper divisors (641204537259).

1203400211541 is a wasteful number, since it uses less digits than its factorization.

1203400211541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2164729.

The product of its (nonzero) digits is 960, while the sum is 24.

Adding to 1203400211541 its reverse (1451120043021), we get a palindrome (2654520254562).

The spelling of 1203400211541 in words is "one trillion, two hundred three billion, four hundred million, two hundred eleven thousand, five hundred forty-one".