131020022 has 12 divisors (see below), whose sum is σ = 228616740. Its totient is φ = 56151396.

The previous prime is 131020013. The next prime is 131020031. The reversal of 131020022 is 220020131.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (131020013) and next prime (131020031).

It is a junction number, because it is equal to n+sod(n) for n = 131019985 and 131020012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 668372 + ... + 668567.

It is an arithmetic number, because the mean of its divisors is an integer number (19051395).

Almost surely, 2^131020022 is an apocalyptic number.

131020022 is a deficient number, since it is larger than the sum of its proper divisors (97596718).

131020022 is a wasteful number, since it uses less digits than its factorization.

131020022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1336955 (or 1336948 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 131020022 is about 11446.3977739724. The cubic root of 131020022 is about 507.9011809975.

Adding to 131020022 its reverse (220020131), we get a palindrome (351040153).

The spelling of 131020022 in words is "one hundred thirty-one million, twenty thousand, twenty-two".