31011132021430 has 32 divisors (see below), whose sum is σ = 61089137977248. Its totient is φ = 11240747232000.

The previous prime is 31011132021283. The next prime is 31011132021451. The reversal of 31011132021430 is 3412023111013.

It is a super-2 number, since 2×31011132021430² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 450316021 + ... + 450384880.

It is an arithmetic number, because the mean of its divisors is an integer number (1909035561789).

Almost surely, 2^{31011132021430} is an apocalyptic number.

31011132021430 is a deficient number, since it is larger than the sum of its proper divisors (30078005955818).

31011132021430 is a wasteful number, since it uses less digits than its factorization.

31011132021430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 900701232.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 31011132021430 its reverse (3412023111013), we get a palindrome (34423155132443).

The spelling of 31011132021430 in words is "thirty-one trillion, eleven billion, one hundred thirty-two million, twenty-one thousand, four hundred thirty".