1120121431 has 16 divisors (see below), whose sum is σ = 1338261120. Its totient is φ = 924023520.

The previous prime is 1120121407. The next prime is 1120121479. The reversal of 1120121431 is 1341210211.

It is a cyclic number.

It is not a de Polignac number, because 1120121431 - 2⁵ = 1120121399 is a prime.

It is a super-2 number, since 2×1120121431² = 2509344040370975522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1120121131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57945 + ... + 74818.

It is an arithmetic number, because the mean of its divisors is an integer number (83641320).

Almost surely, 2^1120121431 is an apocalyptic number.

1120121431 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1120121431 is a deficient number, since it is larger than the sum of its proper divisors (218139689).

1120121431 is a wasteful number, since it uses less digits than its factorization.

1120121431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132846.

The product of its (nonzero) digits is 48, while the sum is 16.

The square root of 1120121431 is about 33468.2152347567. The cubic root of 1120121431 is about 1038.5363505467.

Adding to 1120121431 its reverse (1341210211), we get a palindrome (2461331642).

The spelling of 1120121431 in words is "one billion, one hundred twenty million, one hundred twenty-one thousand, four hundred thirty-one".