2311020143040 has 224 divisors, whose sum is σ = 8674864519680. Its totient is φ = 510018195456.

The previous prime is 2311020142999. The next prime is 2311020143051. The reversal of 2311020143040 is 403410201132.

It is a tau number, because it is divible by the number of its divisors (224).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 2311020142998 and 2311020143016.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5734462 + ... + 6124221.

Almost surely, 2^{2311020143040} is an apocalyptic number.

2311020143040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2311020143040 is an abundant number, since it is smaller than the sum of its proper divisors (6363844376640).

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

2311020143040 is a wasteful number, since it uses less digits than its factorization.

2311020143040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11858739 (or 11858729 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 2311020143040 its reverse (403410201132), we get a palindrome (2714430344172).

The spelling of 2311020143040 in words is "two trillion, three hundred eleven billion, twenty million, one hundred forty-three thousand, forty".