31142220354 has 24 divisors (see below), whose sum is σ = 77114069760. Its totient is φ = 8897777208.

The previous prime is 31142220323. The next prime is 31142220377. The reversal of 31142220354 is 45302224113.

31142220354 is a `hidden beast` number, since 31 + 1 + 422 + 203 + 5 + 4 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 123580114 + ... + 123580365.

It is an arithmetic number, because the mean of its divisors is an integer number (3213086240).

Almost surely, 2^31142220354 is an apocalyptic number.

31142220354 is an abundant number, since it is smaller than the sum of its proper divisors (45971849406).

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

31142220354 is a wasteful number, since it uses less digits than its factorization.

31142220354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247160494 (or 247160491 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

Adding to 31142220354 its reverse (45302224113), we get a palindrome (76444444467).

It can be divided in two parts, 311422 and 20354, that added together give a 4-th power (331776 = 24⁴).

The spelling of 31142220354 in words is "thirty-one billion, one hundred forty-two million, two hundred twenty thousand, three hundred fifty-four".