122051431 has 4 divisors (see below), whose sum is σ = 122106600. Its totient is φ = 121996264.

The previous prime is 122051411. The next prime is 122051437. The reversal of 122051431 is 134150221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 122051431 - 2¹¹ = 122049383 is a prime.

It is a super-2 number, since 2×122051431² = 29793103618295522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 122051399 and 122051408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122051437) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24121 + ... + 28738.

It is an arithmetic number, because the mean of its divisors is an integer number (30526650).

Almost surely, 2^122051431 is an apocalyptic number.

122051431 is a deficient number, since it is larger than the sum of its proper divisors (55169).

122051431 is an equidigital number, since it uses as much as digits as its factorization.

122051431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55168.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 122051431 is about 11047.6889438470. The cubic root of 122051431 is about 496.0372508769.

The spelling of 122051431 in words is "one hundred twenty-two million, fifty-one thousand, four hundred thirty-one".