1201022431 has 8 divisors (see below), whose sum is σ = 1372935200. Its totient is φ = 1029194208.

The previous prime is 1201022401. The next prime is 1201022461. The reversal of 1201022431 is 1342201021.

It is an interprime number because it is at equal distance from previous prime (1201022401) and next prime (1201022461).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1201022431 - 2⁵ = 1201022399 is a prime.

It is a super-2 number, since 2×1201022431² = 2884909759530299522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201022401) 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, 12985 + ... + 50701.

It is an arithmetic number, because the mean of its divisors is an integer number (171616900).

Almost surely, 2^1201022431 is an apocalyptic number.

1201022431 is a deficient number, since it is larger than the sum of its proper divisors (171912769).

1201022431 is an equidigital number, since it uses as much as digits as its factorization.

1201022431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42273.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 1201022431 is about 34655.7705295958. The cubic root of 1201022431 is about 1062.9602876925.

Adding to 1201022431 its reverse (1342201021), we get a palindrome (2543223452).

The spelling of 1201022431 in words is "one billion, two hundred one million, twenty-two thousand, four hundred thirty-one".