2311201001020 has 48 divisors (see below), whose sum is σ = 5145776965728. Its totient is φ = 868955740160.

The previous prime is 2311201000877. The next prime is 2311201001147. The reversal of 2311201001020 is 201001021132.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4207522 + ... + 4725001.

It is an arithmetic number, because the mean of its divisors is an integer number (107203686786).

Almost surely, 2^{2311201001020} is an apocalyptic number.

2311201001020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2311201001020 is an abundant number, since it is smaller than the sum of its proper divisors (2834575964708).

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

2311201001020 is a wasteful number, since it uses less digits than its factorization.

2311201001020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8933310 (or 8933308 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 2311201001020 its reverse (201001021132), we get a palindrome (2512202022152).

The spelling of 2311201001020 in words is "two trillion, three hundred eleven billion, two hundred one million, one thousand, twenty".