311225235540052 has 24 divisors (see below), whose sum is σ = 548048001312000. Its totient is φ = 154642545086016.

The previous prime is 311225235540031. The next prime is 311225235540059. The reversal of 311225235540052 is 250045532522113.

It is a super-2 number, since 2×311225235540052² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 311225235539987 and 311225235540014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311225235540059) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 306089302 + ... + 307104397.

It is an arithmetic number, because the mean of its divisors is an integer number (22835333388000).

Almost surely, 2^{311225235540052} is an apocalyptic number.

It is an amenable number.

311225235540052 is a deficient number, since it is larger than the sum of its proper divisors (236822765771948).

311225235540052 is a wasteful number, since it uses less digits than its factorization.

311225235540052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 613194495 (or 613194493 counting only the distinct ones).

The product of its (nonzero) digits is 360000, while the sum is 40.

The spelling of 311225235540052 in words is "three hundred eleven trillion, two hundred twenty-five billion, two hundred thirty-five million, five hundred forty thousand, fifty-two".